Home / 89,774.52-123,888-48,938.64

Finding the Fourth Proportional to 89,774.52, 123,888 and 48,938.64

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Solution

The fourth proportional to 89,774.52, 123,888 and 48,938.64 is: 67,534.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,774.52 : 123,888 = 48,938.64 : x
  2. Step 2: Convert to fraction form
    89,774.52/123,888 = 48,938.64/x
  3. Step 3: Cross multiply
    89,774.52x = 123,888 × 48,938.64
  4. Step 4: Simplify right side
    89,774.52x = 6,062,910,232.32
  5. Step 5: Solve for x
    x = 6,062,910,232.32/89,774.52
  6. Step 6: Final answer
    x = 67,534.87

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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.