Home / 99,509.57-149,284.04-28,432.85

Finding the Fourth Proportional to 99,509.57, 149,284.04 and 28,432.85

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Solution

The fourth proportional to 99,509.57, 149,284.04 and 28,432.85 is: 42,654.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,509.57 : 149,284.04 = 28,432.85 : x
  2. Step 2: Convert to fraction form
    99,509.57/149,284.04 = 28,432.85/x
  3. Step 3: Cross multiply
    99,509.57x = 149,284.04 × 28,432.85
  4. Step 4: Simplify right side
    99,509.57x = 4,244,569,828.13
  5. Step 5: Solve for x
    x = 4,244,569,828.13/99,509.57
  6. Step 6: Final answer
    x = 42,654.89

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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.