Home / 99,829.10-137,621.04-61,562.95

Finding the Fourth Proportional to 99,829.10, 137,621.04 and 61,562.95

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Solution

The fourth proportional to 99,829.10, 137,621.04 and 61,562.95 is: 84,868.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,829.10 : 137,621.04 = 61,562.95 : x
  2. Step 2: Convert to fraction form
    99,829.10/137,621.04 = 61,562.95/x
  3. Step 3: Cross multiply
    99,829.10x = 137,621.04 × 61,562.95
  4. Step 4: Simplify right side
    99,829.10x = 8,472,357,204.47
  5. Step 5: Solve for x
    x = 8,472,357,204.47/99,829.10
  6. Step 6: Final answer
    x = 84,868.61

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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.