Home / 55,287.28-76,298.24-31,412.52

Finding the Fourth Proportional to 55,287.28, 76,298.24 and 31,412.52

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Solution

The fourth proportional to 55,287.28, 76,298.24 and 31,412.52 is: 43,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,287.28 : 76,298.24 = 31,412.52 : x
  2. Step 2: Convert to fraction form
    55,287.28/76,298.24 = 31,412.52/x
  3. Step 3: Cross multiply
    55,287.28x = 76,298.24 × 31,412.52
  4. Step 4: Simplify right side
    55,287.28x = 2,396,719,989.96
  5. Step 5: Solve for x
    x = 2,396,719,989.96/55,287.28
  6. Step 6: Final answer
    x = 43,350.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.