Home / 89,040.17-122,871.60-48,753.20

Finding the Fourth Proportional to 89,040.17, 122,871.60 and 48,753.20

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Solution

The fourth proportional to 89,040.17, 122,871.60 and 48,753.20 is: 67,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,040.17 : 122,871.60 = 48,753.20 : x
  2. Step 2: Convert to fraction form
    89,040.17/122,871.60 = 48,753.20/x
  3. Step 3: Cross multiply
    89,040.17x = 122,871.60 × 48,753.20
  4. Step 4: Simplify right side
    89,040.17x = 5,990,383,689.12
  5. Step 5: Solve for x
    x = 5,990,383,689.12/89,040.17
  6. Step 6: Final answer
    x = 67,277.32

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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.