Home / 83,490.16-125,221.92-30,887.68

Finding the Fourth Proportional to 83,490.16, 125,221.92 and 30,887.68

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Solution

The fourth proportional to 83,490.16, 125,221.92 and 30,887.68 is: 46,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,490.16 : 125,221.92 = 30,887.68 : x
  2. Step 2: Convert to fraction form
    83,490.16/125,221.92 = 30,887.68/x
  3. Step 3: Cross multiply
    83,490.16x = 125,221.92 × 30,887.68
  4. Step 4: Simplify right side
    83,490.16x = 3,867,814,593.95
  5. Step 5: Solve for x
    x = 3,867,814,593.95/83,490.16
  6. Step 6: Final answer
    x = 46,326.59

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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.