Home / 57,891.24-86,814.72-31,581.90

Finding the Fourth Proportional to 57,891.24, 86,814.72 and 31,581.90

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Solution

The fourth proportional to 57,891.24, 86,814.72 and 31,581.90 is: 47,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,891.24 : 86,814.72 = 31,581.90 : x
  2. Step 2: Convert to fraction form
    57,891.24/86,814.72 = 31,581.90/x
  3. Step 3: Cross multiply
    57,891.24x = 86,814.72 × 31,581.90
  4. Step 4: Simplify right side
    57,891.24x = 2,741,773,805.57
  5. Step 5: Solve for x
    x = 2,741,773,805.57/57,891.24
  6. Step 6: Final answer
    x = 47,360.77

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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.