Home / 99,588.43-137,422.19-58,751.69

Finding the Fourth Proportional to 99,588.43, 137,422.19 and 58,751.69

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Solution

The fourth proportional to 99,588.43, 137,422.19 and 58,751.69 is: 81,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,588.43 : 137,422.19 = 58,751.69 : x
  2. Step 2: Convert to fraction form
    99,588.43/137,422.19 = 58,751.69/x
  3. Step 3: Cross multiply
    99,588.43x = 137,422.19 × 58,751.69
  4. Step 4: Simplify right side
    99,588.43x = 8,073,785,612.24
  5. Step 5: Solve for x
    x = 8,073,785,612.24/99,588.43
  6. Step 6: Final answer
    x = 81,071.53

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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.