Home / 81,962.52-123,023.88-42,013.32

Finding the Fourth Proportional to 81,962.52, 123,023.88 and 42,013.32

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Solution

The fourth proportional to 81,962.52, 123,023.88 and 42,013.32 is: 63,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,962.52 : 123,023.88 = 42,013.32 : x
  2. Step 2: Convert to fraction form
    81,962.52/123,023.88 = 42,013.32/x
  3. Step 3: Cross multiply
    81,962.52x = 123,023.88 × 42,013.32
  4. Step 4: Simplify right side
    81,962.52x = 5,168,641,638.08
  5. Step 5: Solve for x
    x = 5,168,641,638.08/81,962.52
  6. Step 6: Final answer
    x = 63,061.04

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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.