Home / 87,455.50-131,210.92-31,294.36

Finding the Fourth Proportional to 87,455.50, 131,210.92 and 31,294.36

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Solution

The fourth proportional to 87,455.50, 131,210.92 and 31,294.36 is: 46,951.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,455.50 : 131,210.92 = 31,294.36 : x
  2. Step 2: Convert to fraction form
    87,455.50/131,210.92 = 31,294.36/x
  3. Step 3: Cross multiply
    87,455.50x = 131,210.92 × 31,294.36
  4. Step 4: Simplify right side
    87,455.50x = 4,106,161,766.41
  5. Step 5: Solve for x
    x = 4,106,161,766.41/87,455.50
  6. Step 6: Final answer
    x = 46,951.44

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1.5x scale

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.