Home / 98,983.79-136,565.52-55,959.12

Finding the Fourth Proportional to 98,983.79, 136,565.52 and 55,959.12

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Solution

The fourth proportional to 98,983.79, 136,565.52 and 55,959.12 is: 77,205.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,983.79 : 136,565.52 = 55,959.12 : x
  2. Step 2: Convert to fraction form
    98,983.79/136,565.52 = 55,959.12/x
  3. Step 3: Cross multiply
    98,983.79x = 136,565.52 × 55,959.12
  4. Step 4: Simplify right side
    98,983.79x = 7,642,086,321.54
  5. Step 5: Solve for x
    x = 7,642,086,321.54/98,983.79
  6. Step 6: Final answer
    x = 77,205.44

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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.