Home / 99,772.48-137,714.52-58,974.40

Finding the Fourth Proportional to 99,772.48, 137,714.52 and 58,974.40

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Solution

The fourth proportional to 99,772.48, 137,714.52 and 58,974.40 is: 81,401.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,772.48 : 137,714.52 = 58,974.40 : x
  2. Step 2: Convert to fraction form
    99,772.48/137,714.52 = 58,974.40/x
  3. Step 3: Cross multiply
    99,772.48x = 137,714.52 × 58,974.40
  4. Step 4: Simplify right side
    99,772.48x = 8,121,631,188.29
  5. Step 5: Solve for x
    x = 8,121,631,188.29/99,772.48
  6. Step 6: Final answer
    x = 81,401.52

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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.