Home / 42,089.85-63,142.38-12,102.66

Finding the Fourth Proportional to 42,089.85, 63,142.38 and 12,102.66

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Solution

The fourth proportional to 42,089.85, 63,142.38 and 12,102.66 is: 18,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,089.85 : 63,142.38 = 12,102.66 : x
  2. Step 2: Convert to fraction form
    42,089.85/63,142.38 = 12,102.66/x
  3. Step 3: Cross multiply
    42,089.85x = 63,142.38 × 12,102.66
  4. Step 4: Simplify right side
    42,089.85x = 764,190,756.73
  5. Step 5: Solve for x
    x = 764,190,756.73/42,089.85
  6. Step 6: Final answer
    x = 18,156.18

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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.