Home / 87,133.09-120,147.61-60,228.89

Finding the Fourth Proportional to 87,133.09, 120,147.61 and 60,228.89

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Solution

The fourth proportional to 87,133.09, 120,147.61 and 60,228.89 is: 83,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,133.09 : 120,147.61 = 60,228.89 : x
  2. Step 2: Convert to fraction form
    87,133.09/120,147.61 = 60,228.89/x
  3. Step 3: Cross multiply
    87,133.09x = 120,147.61 × 60,228.89
  4. Step 4: Simplify right side
    87,133.09x = 7,236,356,585.71
  5. Step 5: Solve for x
    x = 7,236,356,585.71/87,133.09
  6. Step 6: Final answer
    x = 83,049.47

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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.