Home / 56,909.10-85,363.65-40,287.90

Finding the Fourth Proportional to 56,909.10, 85,363.65 and 40,287.90

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Solution

The fourth proportional to 56,909.10, 85,363.65 and 40,287.90 is: 60,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,909.10 : 85,363.65 = 40,287.90 : x
  2. Step 2: Convert to fraction form
    56,909.10/85,363.65 = 40,287.90/x
  3. Step 3: Cross multiply
    56,909.10x = 85,363.65 × 40,287.90
  4. Step 4: Simplify right side
    56,909.10x = 3,439,122,194.84
  5. Step 5: Solve for x
    x = 3,439,122,194.84/56,909.10
  6. Step 6: Final answer
    x = 60,431.85

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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.