Home / 81,549.96-122,209.19-34,113.93

Finding the Fourth Proportional to 81,549.96, 122,209.19 and 34,113.93

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Solution

The fourth proportional to 81,549.96, 122,209.19 and 34,113.93 is: 51,122.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,549.96 : 122,209.19 = 34,113.93 : x
  2. Step 2: Convert to fraction form
    81,549.96/122,209.19 = 34,113.93/x
  3. Step 3: Cross multiply
    81,549.96x = 122,209.19 × 34,113.93
  4. Step 4: Simplify right side
    81,549.96x = 4,169,035,753.02
  5. Step 5: Solve for x
    x = 4,169,035,753.02/81,549.96
  6. Step 6: Final answer
    x = 51,122.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.