Home / 99,829.26-137,748.14-58,987.71

Finding the Fourth Proportional to 99,829.26, 137,748.14 and 58,987.71

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Solution

The fourth proportional to 99,829.26, 137,748.14 and 58,987.71 is: 81,393.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,829.26 : 137,748.14 = 58,987.71 : x
  2. Step 2: Convert to fraction form
    99,829.26/137,748.14 = 58,987.71/x
  3. Step 3: Cross multiply
    99,829.26x = 137,748.14 × 58,987.71
  4. Step 4: Simplify right side
    99,829.26x = 8,125,447,040.42
  5. Step 5: Solve for x
    x = 8,125,447,040.42/99,829.26
  6. Step 6: Final answer
    x = 81,393.44

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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.