Home / 42,132.06-63,209.79-18,435.36

Finding the Fourth Proportional to 42,132.06, 63,209.79 and 18,435.36

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Solution

The fourth proportional to 42,132.06, 63,209.79 and 18,435.36 is: 27,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,132.06 : 63,209.79 = 18,435.36 : x
  2. Step 2: Convert to fraction form
    42,132.06/63,209.79 = 18,435.36/x
  3. Step 3: Cross multiply
    42,132.06x = 63,209.79 × 18,435.36
  4. Step 4: Simplify right side
    42,132.06x = 1,165,295,234.17
  5. Step 5: Solve for x
    x = 1,165,295,234.17/42,132.06
  6. Step 6: Final answer
    x = 27,658.16

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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.