Home / 56,827.72-85,132.45-31,791.90

Finding the Fourth Proportional to 56,827.72, 85,132.45 and 31,791.90

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Solution

The fourth proportional to 56,827.72, 85,132.45 and 31,791.90 is: 47,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,827.72 : 85,132.45 = 31,791.90 : x
  2. Step 2: Convert to fraction form
    56,827.72/85,132.45 = 31,791.90/x
  3. Step 3: Cross multiply
    56,827.72x = 85,132.45 × 31,791.90
  4. Step 4: Simplify right side
    56,827.72x = 2,706,522,337.16
  5. Step 5: Solve for x
    x = 2,706,522,337.16/56,827.72
  6. Step 6: Final answer
    x = 47,626.80

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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.