Home / 82,660.47-123,944.01-75,607.40

Finding the Fourth Proportional to 82,660.47, 123,944.01 and 75,607.40

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Solution

The fourth proportional to 82,660.47, 123,944.01 and 75,607.40 is: 113,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,660.47 : 123,944.01 = 75,607.40 : x
  2. Step 2: Convert to fraction form
    82,660.47/123,944.01 = 75,607.40/x
  3. Step 3: Cross multiply
    82,660.47x = 123,944.01 × 75,607.40
  4. Step 4: Simplify right side
    82,660.47x = 9,371,083,721.95
  5. Step 5: Solve for x
    x = 9,371,083,721.95/82,660.47
  6. Step 6: Final answer
    x = 113,368.38

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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.