Home / 99,984.69-138,013.61-57,560.13

Finding the Fourth Proportional to 99,984.69, 138,013.61 and 57,560.13

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Solution

The fourth proportional to 99,984.69, 138,013.61 and 57,560.13 is: 79,452.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,984.69 : 138,013.61 = 57,560.13 : x
  2. Step 2: Convert to fraction form
    99,984.69/138,013.61 = 57,560.13/x
  3. Step 3: Cross multiply
    99,984.69x = 138,013.61 × 57,560.13
  4. Step 4: Simplify right side
    99,984.69x = 7,944,081,045.57
  5. Step 5: Solve for x
    x = 7,944,081,045.57/99,984.69
  6. Step 6: Final answer
    x = 79,452.97

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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.