Home / 49,385.92-74,131.52-21,319.68

Finding the Fourth Proportional to 49,385.92, 74,131.52 and 21,319.68

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Solution

The fourth proportional to 49,385.92, 74,131.52 and 21,319.68 is: 32,002.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,385.92 : 74,131.52 = 21,319.68 : x
  2. Step 2: Convert to fraction form
    49,385.92/74,131.52 = 21,319.68/x
  3. Step 3: Cross multiply
    49,385.92x = 74,131.52 × 21,319.68
  4. Step 4: Simplify right side
    49,385.92x = 1,580,460,284.31
  5. Step 5: Solve for x
    x = 1,580,460,284.31/49,385.92
  6. Step 6: Final answer
    x = 32,002.24

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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.