Home / 83,139.09-124,727.10-23,970.15

Finding the Fourth Proportional to 83,139.09, 124,727.10 and 23,970.15

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Solution

The fourth proportional to 83,139.09, 124,727.10 and 23,970.15 is: 35,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,139.09 : 124,727.10 = 23,970.15 : x
  2. Step 2: Convert to fraction form
    83,139.09/124,727.10 = 23,970.15/x
  3. Step 3: Cross multiply
    83,139.09x = 124,727.10 × 23,970.15
  4. Step 4: Simplify right side
    83,139.09x = 2,989,727,296.07
  5. Step 5: Solve for x
    x = 2,989,727,296.07/83,139.09
  6. Step 6: Final answer
    x = 35,960.55

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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.