Home / 83,369.83-115,039.55-47,557.70

Finding the Fourth Proportional to 83,369.83, 115,039.55 and 47,557.70

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Solution

The fourth proportional to 83,369.83, 115,039.55 and 47,557.70 is: 65,623.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,369.83 : 115,039.55 = 47,557.70 : x
  2. Step 2: Convert to fraction form
    83,369.83/115,039.55 = 47,557.70/x
  3. Step 3: Cross multiply
    83,369.83x = 115,039.55 × 47,557.70
  4. Step 4: Simplify right side
    83,369.83x = 5,471,016,407.04
  5. Step 5: Solve for x
    x = 5,471,016,407.04/83,369.83
  6. Step 6: Final answer
    x = 65,623.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.