Home / 87,190.85-130,821.92-31,041.65

Finding the Fourth Proportional to 87,190.85, 130,821.92 and 31,041.65

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Solution

The fourth proportional to 87,190.85, 130,821.92 and 31,041.65 is: 46,575.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,190.85 : 130,821.92 = 31,041.65 : x
  2. Step 2: Convert to fraction form
    87,190.85/130,821.92 = 31,041.65/x
  3. Step 3: Cross multiply
    87,190.85x = 130,821.92 × 31,041.65
  4. Step 4: Simplify right side
    87,190.85x = 4,060,927,443.65
  5. Step 5: Solve for x
    x = 4,060,927,443.65/87,190.85
  6. Step 6: Final answer
    x = 46,575.16

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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.