Home / 56,915.20-85,372.80-27,390.70

Finding the Fourth Proportional to 56,915.20, 85,372.80 and 27,390.70

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Solution

The fourth proportional to 56,915.20, 85,372.80 and 27,390.70 is: 41,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,915.20 : 85,372.80 = 27,390.70 : x
  2. Step 2: Convert to fraction form
    56,915.20/85,372.80 = 27,390.70/x
  3. Step 3: Cross multiply
    56,915.20x = 85,372.80 × 27,390.70
  4. Step 4: Simplify right side
    56,915.20x = 2,338,420,752.96
  5. Step 5: Solve for x
    x = 2,338,420,752.96/56,915.20
  6. Step 6: Final answer
    x = 41,086.05

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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.