Home / 71,534.40-98,714.88-39,704.64

Finding the Fourth Proportional to 71,534.40, 98,714.88 and 39,704.64

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Solution

The fourth proportional to 71,534.40, 98,714.88 and 39,704.64 is: 54,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,534.40 : 98,714.88 = 39,704.64 : x
  2. Step 2: Convert to fraction form
    71,534.40/98,714.88 = 39,704.64/x
  3. Step 3: Cross multiply
    71,534.40x = 98,714.88 × 39,704.64
  4. Step 4: Simplify right side
    71,534.40x = 3,919,438,773.04
  5. Step 5: Solve for x
    x = 3,919,438,773.04/71,534.40
  6. Step 6: Final answer
    x = 54,790.96

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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.