Home / 87,776.24-131,631.72-31,601.12

Finding the Fourth Proportional to 87,776.24, 131,631.72 and 31,601.12

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Solution

The fourth proportional to 87,776.24, 131,631.72 and 31,601.12 is: 47,389.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,776.24 : 131,631.72 = 31,601.12 : x
  2. Step 2: Convert to fraction form
    87,776.24/131,631.72 = 31,601.12/x
  3. Step 3: Cross multiply
    87,776.24x = 131,631.72 × 31,601.12
  4. Step 4: Simplify right side
    87,776.24x = 4,159,709,779.53
  5. Step 5: Solve for x
    x = 4,159,709,779.53/87,776.24
  6. Step 6: Final answer
    x = 47,389.93

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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.