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Finding the Fourth Proportional to 83,139.68, 124,727.94 and 23,970.73

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Solution

The fourth proportional to 83,139.68, 124,727.94 and 23,970.73 is: 35,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,139.68 : 124,727.94 = 23,970.73 : x
  2. Step 2: Convert to fraction form
    83,139.68/124,727.94 = 23,970.73/x
  3. Step 3: Cross multiply
    83,139.68x = 124,727.94 × 23,970.73
  4. Step 4: Simplify right side
    83,139.68x = 2,989,819,461.38
  5. Step 5: Solve for x
    x = 2,989,819,461.38/83,139.68
  6. Step 6: Final answer
    x = 35,961.40

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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.