Home / 83,864.04-115,704.06-56,959.92

Finding the Fourth Proportional to 83,864.04, 115,704.06 and 56,959.92

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Solution

The fourth proportional to 83,864.04, 115,704.06 and 56,959.92 is: 78,585.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,864.04 : 115,704.06 = 56,959.92 : x
  2. Step 2: Convert to fraction form
    83,864.04/115,704.06 = 56,959.92/x
  3. Step 3: Cross multiply
    83,864.04x = 115,704.06 × 56,959.92
  4. Step 4: Simplify right side
    83,864.04x = 6,590,494,001.28
  5. Step 5: Solve for x
    x = 6,590,494,001.28/83,864.04
  6. Step 6: Final answer
    x = 78,585.46

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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.