Home / 89,331.12-123,272.28-61,043.76

Finding the Fourth Proportional to 89,331.12, 123,272.28 and 61,043.76

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Solution

The fourth proportional to 89,331.12, 123,272.28 and 61,043.76 is: 84,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,331.12 : 123,272.28 = 61,043.76 : x
  2. Step 2: Convert to fraction form
    89,331.12/123,272.28 = 61,043.76/x
  3. Step 3: Cross multiply
    89,331.12x = 123,272.28 × 61,043.76
  4. Step 4: Simplify right side
    89,331.12x = 7,525,003,474.97
  5. Step 5: Solve for x
    x = 7,525,003,474.97/89,331.12
  6. Step 6: Final answer
    x = 84,237.20

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1.5x scale

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.