Home / 87,874.81-131,784.98-31,707.65

Finding the Fourth Proportional to 87,874.81, 131,784.98 and 31,707.65

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Solution

The fourth proportional to 87,874.81, 131,784.98 and 31,707.65 is: 47,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.81 : 131,784.98 = 31,707.65 : x
  2. Step 2: Convert to fraction form
    87,874.81/131,784.98 = 31,707.65/x
  3. Step 3: Cross multiply
    87,874.81x = 131,784.98 × 31,707.65
  4. Step 4: Simplify right side
    87,874.81x = 4,178,592,192.02
  5. Step 5: Solve for x
    x = 4,178,592,192.02/87,874.81
  6. Step 6: Final answer
    x = 47,551.65

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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.