Home / 55,129.42-82,628.51-38,398.87

Finding the Fourth Proportional to 55,129.42, 82,628.51 and 38,398.87

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Solution

The fourth proportional to 55,129.42, 82,628.51 and 38,398.87 is: 57,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,129.42 : 82,628.51 = 38,398.87 : x
  2. Step 2: Convert to fraction form
    55,129.42/82,628.51 = 38,398.87/x
  3. Step 3: Cross multiply
    55,129.42x = 82,628.51 × 38,398.87
  4. Step 4: Simplify right side
    55,129.42x = 3,172,841,000.64
  5. Step 5: Solve for x
    x = 3,172,841,000.64/55,129.42
  6. Step 6: Final answer
    x = 57,552.60

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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.