Home / 42,136.20-63,207.54-12,551.76

Finding the Fourth Proportional to 42,136.20, 63,207.54 and 12,551.76

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Solution

The fourth proportional to 42,136.20, 63,207.54 and 12,551.76 is: 18,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,136.20 : 63,207.54 = 12,551.76 : x
  2. Step 2: Convert to fraction form
    42,136.20/63,207.54 = 12,551.76/x
  3. Step 3: Cross multiply
    42,136.20x = 63,207.54 × 12,551.76
  4. Step 4: Simplify right side
    42,136.20x = 793,365,872.27
  5. Step 5: Solve for x
    x = 793,365,872.27/42,136.20
  6. Step 6: Final answer
    x = 18,828.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.