Home / 57,781.10-86,700.45-32,840.30

Finding the Fourth Proportional to 57,781.10, 86,700.45 and 32,840.30

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Solution

The fourth proportional to 57,781.10, 86,700.45 and 32,840.30 is: 49,276.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,781.10 : 86,700.45 = 32,840.30 : x
  2. Step 2: Convert to fraction form
    57,781.10/86,700.45 = 32,840.30/x
  3. Step 3: Cross multiply
    57,781.10x = 86,700.45 × 32,840.30
  4. Step 4: Simplify right side
    57,781.10x = 2,847,268,788.14
  5. Step 5: Solve for x
    x = 2,847,268,788.14/57,781.10
  6. Step 6: Final answer
    x = 49,276.82

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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.