Home / 82,041.98-122,989.10-29,439.14

Finding the Fourth Proportional to 82,041.98, 122,989.10 and 29,439.14

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Solution

The fourth proportional to 82,041.98, 122,989.10 and 29,439.14 is: 44,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,041.98 : 122,989.10 = 29,439.14 : x
  2. Step 2: Convert to fraction form
    82,041.98/122,989.10 = 29,439.14/x
  3. Step 3: Cross multiply
    82,041.98x = 122,989.10 × 29,439.14
  4. Step 4: Simplify right side
    82,041.98x = 3,620,692,571.23
  5. Step 5: Solve for x
    x = 3,620,692,571.23/82,041.98
  6. Step 6: Final answer
    x = 44,132.20

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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.