Home / 57,839.20-86,629.20-56,543.20

Finding the Fourth Proportional to 57,839.20, 86,629.20 and 56,543.20

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Solution

The fourth proportional to 57,839.20, 86,629.20 and 56,543.20 is: 84,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,839.20 : 86,629.20 = 56,543.20 : x
  2. Step 2: Convert to fraction form
    57,839.20/86,629.20 = 56,543.20/x
  3. Step 3: Cross multiply
    57,839.20x = 86,629.20 × 56,543.20
  4. Step 4: Simplify right side
    57,839.20x = 4,898,292,181.44
  5. Step 5: Solve for x
    x = 4,898,292,181.44/57,839.20
  6. Step 6: Final answer
    x = 84,688.10

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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.