Home / 89,610.40-134,415.60-61,616.80

Finding the Fourth Proportional to 89,610.40, 134,415.60 and 61,616.80

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Solution

The fourth proportional to 89,610.40, 134,415.60 and 61,616.80 is: 92,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,610.40 : 134,415.60 = 61,616.80 : x
  2. Step 2: Convert to fraction form
    89,610.40/134,415.60 = 61,616.80/x
  3. Step 3: Cross multiply
    89,610.40x = 134,415.60 × 61,616.80
  4. Step 4: Simplify right side
    89,610.40x = 8,282,259,142.08
  5. Step 5: Solve for x
    x = 8,282,259,142.08/89,610.40
  6. Step 6: Final answer
    x = 92,425.20

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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.