Home / 66,760.13-92,139.29-38,079.86

Finding the Fourth Proportional to 66,760.13, 92,139.29 and 38,079.86

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Solution

The fourth proportional to 66,760.13, 92,139.29 and 38,079.86 is: 52,556.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,760.13 : 92,139.29 = 38,079.86 : x
  2. Step 2: Convert to fraction form
    66,760.13/92,139.29 = 38,079.86/x
  3. Step 3: Cross multiply
    66,760.13x = 92,139.29 × 38,079.86
  4. Step 4: Simplify right side
    66,760.13x = 3,508,650,612.60
  5. Step 5: Solve for x
    x = 3,508,650,612.60/66,760.13
  6. Step 6: Final answer
    x = 52,556.08

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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.