Home / 56,882.50-78,498.08-31,389.61

Finding the Fourth Proportional to 56,882.50, 78,498.08 and 31,389.61

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Solution

The fourth proportional to 56,882.50, 78,498.08 and 31,389.61 is: 43,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,882.50 : 78,498.08 = 31,389.61 : x
  2. Step 2: Convert to fraction form
    56,882.50/78,498.08 = 31,389.61/x
  3. Step 3: Cross multiply
    56,882.50x = 78,498.08 × 31,389.61
  4. Step 4: Simplify right side
    56,882.50x = 2,464,024,028.65
  5. Step 5: Solve for x
    x = 2,464,024,028.65/56,882.50
  6. Step 6: Final answer
    x = 43,317.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.