Home / 66,331.46-91,538.05-38,031.68

Finding the Fourth Proportional to 66,331.46, 91,538.05 and 38,031.68

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Solution

The fourth proportional to 66,331.46, 91,538.05 and 38,031.68 is: 52,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,331.46 : 91,538.05 = 38,031.68 : x
  2. Step 2: Convert to fraction form
    66,331.46/91,538.05 = 38,031.68/x
  3. Step 3: Cross multiply
    66,331.46x = 91,538.05 × 38,031.68
  4. Step 4: Simplify right side
    66,331.46x = 3,481,345,825.42
  5. Step 5: Solve for x
    x = 3,481,345,825.42/66,331.46
  6. Step 6: Final answer
    x = 52,484.08

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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.