Home / 99,639.44-137,432.04-59,321.96

Finding the Fourth Proportional to 99,639.44, 137,432.04 and 59,321.96

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Solution

The fourth proportional to 99,639.44, 137,432.04 and 59,321.96 is: 81,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,639.44 : 137,432.04 = 59,321.96 : x
  2. Step 2: Convert to fraction form
    99,639.44/137,432.04 = 59,321.96/x
  3. Step 3: Cross multiply
    99,639.44x = 137,432.04 × 59,321.96
  4. Step 4: Simplify right side
    99,639.44x = 8,152,737,979.60
  5. Step 5: Solve for x
    x = 8,152,737,979.60/99,639.44
  6. Step 6: Final answer
    x = 81,822.40

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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.