Home / 87,559.63-131,356.60-31,384.71

Finding the Fourth Proportional to 87,559.63, 131,356.60 and 31,384.71

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Solution

The fourth proportional to 87,559.63, 131,356.60 and 31,384.71 is: 47,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,559.63 : 131,356.60 = 31,384.71 : x
  2. Step 2: Convert to fraction form
    87,559.63/131,356.60 = 31,384.71/x
  3. Step 3: Cross multiply
    87,559.63x = 131,356.60 × 31,384.71
  4. Step 4: Simplify right side
    87,559.63x = 4,122,588,719.12
  5. Step 5: Solve for x
    x = 4,122,588,719.12/87,559.63
  6. Step 6: Final answer
    x = 47,083.21

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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.