Home / 66,649.28-91,976.06-38,354.96

Finding the Fourth Proportional to 66,649.28, 91,976.06 and 38,354.96

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Solution

The fourth proportional to 66,649.28, 91,976.06 and 38,354.96 is: 52,929.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,649.28 : 91,976.06 = 38,354.96 : x
  2. Step 2: Convert to fraction form
    66,649.28/91,976.06 = 38,354.96/x
  3. Step 3: Cross multiply
    66,649.28x = 91,976.06 × 38,354.96
  4. Step 4: Simplify right side
    66,649.28x = 3,527,738,102.26
  5. Step 5: Solve for x
    x = 3,527,738,102.26/66,649.28
  6. Step 6: Final answer
    x = 52,929.88

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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.