Home / 89,442.08-123,422.84-51,718.76

Finding the Fourth Proportional to 89,442.08, 123,422.84 and 51,718.76

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Solution

The fourth proportional to 89,442.08, 123,422.84 and 51,718.76 is: 71,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,442.08 : 123,422.84 = 51,718.76 : x
  2. Step 2: Convert to fraction form
    89,442.08/123,422.84 = 51,718.76/x
  3. Step 3: Cross multiply
    89,442.08x = 123,422.84 × 51,718.76
  4. Step 4: Simplify right side
    89,442.08x = 6,383,276,240.48
  5. Step 5: Solve for x
    x = 6,383,276,240.48/89,442.08
  6. Step 6: Final answer
    x = 71,367.71

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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.