Home / 82,278.40-123,345.60-55,897.60

Finding the Fourth Proportional to 82,278.40, 123,345.60 and 55,897.60

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Solution

The fourth proportional to 82,278.40, 123,345.60 and 55,897.60 is: 83,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,278.40 : 123,345.60 = 55,897.60 : x
  2. Step 2: Convert to fraction form
    82,278.40/123,345.60 = 55,897.60/x
  3. Step 3: Cross multiply
    82,278.40x = 123,345.60 × 55,897.60
  4. Step 4: Simplify right side
    82,278.40x = 6,894,723,010.56
  5. Step 5: Solve for x
    x = 6,894,723,010.56/82,278.40
  6. Step 6: Final answer
    x = 83,797.49

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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.