Home / 71,521.53-98,700.30-39,690.96

Finding the Fourth Proportional to 71,521.53, 98,700.30 and 39,690.96

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Solution

The fourth proportional to 71,521.53, 98,700.30 and 39,690.96 is: 54,773.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,521.53 : 98,700.30 = 39,690.96 : x
  2. Step 2: Convert to fraction form
    71,521.53/98,700.30 = 39,690.96/x
  3. Step 3: Cross multiply
    71,521.53x = 98,700.30 × 39,690.96
  4. Step 4: Simplify right side
    71,521.53x = 3,917,509,732.72
  5. Step 5: Solve for x
    x = 3,917,509,732.72/71,521.53
  6. Step 6: Final answer
    x = 54,773.85

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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.