Home / 52,872.90-72,915.17-42,153.36

Finding the Fourth Proportional to 52,872.90, 72,915.17 and 42,153.36

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Solution

The fourth proportional to 52,872.90, 72,915.17 and 42,153.36 is: 58,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,872.90 : 72,915.17 = 42,153.36 : x
  2. Step 2: Convert to fraction form
    52,872.90/72,915.17 = 42,153.36/x
  3. Step 3: Cross multiply
    52,872.90x = 72,915.17 × 42,153.36
  4. Step 4: Simplify right side
    52,872.90x = 3,073,619,199.70
  5. Step 5: Solve for x
    x = 3,073,619,199.70/52,872.90
  6. Step 6: Final answer
    x = 58,132.22

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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.