Home / 96,985.83-133,820.38-56,691.79

Finding the Fourth Proportional to 96,985.83, 133,820.38 and 56,691.79

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Solution

The fourth proportional to 96,985.83, 133,820.38 and 56,691.79 is: 78,222.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,985.83 : 133,820.38 = 56,691.79 : x
  2. Step 2: Convert to fraction form
    96,985.83/133,820.38 = 56,691.79/x
  3. Step 3: Cross multiply
    96,985.83x = 133,820.38 × 56,691.79
  4. Step 4: Simplify right side
    96,985.83x = 7,586,517,210.29
  5. Step 5: Solve for x
    x = 7,586,517,210.29/96,985.83
  6. Step 6: Final answer
    x = 78,222.95

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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.