Home / 83,601.10-125,401.65-30,999.70

Finding the Fourth Proportional to 83,601.10, 125,401.65 and 30,999.70

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Solution

The fourth proportional to 83,601.10, 125,401.65 and 30,999.70 is: 46,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,601.10 : 125,401.65 = 30,999.70 : x
  2. Step 2: Convert to fraction form
    83,601.10/125,401.65 = 30,999.70/x
  3. Step 3: Cross multiply
    83,601.10x = 125,401.65 × 30,999.70
  4. Step 4: Simplify right side
    83,601.10x = 3,887,413,529.51
  5. Step 5: Solve for x
    x = 3,887,413,529.51/83,601.10
  6. Step 6: Final answer
    x = 46,499.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.