Home / 83,316.16-124,990.08-30,729.76

Finding the Fourth Proportional to 83,316.16, 124,990.08 and 30,729.76

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Solution

The fourth proportional to 83,316.16, 124,990.08 and 30,729.76 is: 46,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,316.16 : 124,990.08 = 30,729.76 : x
  2. Step 2: Convert to fraction form
    83,316.16/124,990.08 = 30,729.76/x
  3. Step 3: Cross multiply
    83,316.16x = 124,990.08 × 30,729.76
  4. Step 4: Simplify right side
    83,316.16x = 3,840,915,160.78
  5. Step 5: Solve for x
    x = 3,840,915,160.78/83,316.16
  6. Step 6: Final answer
    x = 46,100.48

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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.