Home / 87,473.76-131,212.65-31,317.72

Finding the Fourth Proportional to 87,473.76, 131,212.65 and 31,317.72

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Solution

The fourth proportional to 87,473.76, 131,212.65 and 31,317.72 is: 46,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,473.76 : 131,212.65 = 31,317.72 : x
  2. Step 2: Convert to fraction form
    87,473.76/131,212.65 = 31,317.72/x
  3. Step 3: Cross multiply
    87,473.76x = 131,212.65 × 31,317.72
  4. Step 4: Simplify right side
    87,473.76x = 4,109,281,033.16
  5. Step 5: Solve for x
    x = 4,109,281,033.16/87,473.76
  6. Step 6: Final answer
    x = 46,977.30

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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.