Home / 89,640.88-123,699.96-49,358.24

Finding the Fourth Proportional to 89,640.88, 123,699.96 and 49,358.24

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Solution

The fourth proportional to 89,640.88, 123,699.96 and 49,358.24 is: 68,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,640.88 : 123,699.96 = 49,358.24 : x
  2. Step 2: Convert to fraction form
    89,640.88/123,699.96 = 49,358.24/x
  3. Step 3: Cross multiply
    89,640.88x = 123,699.96 × 49,358.24
  4. Step 4: Simplify right side
    89,640.88x = 6,105,612,313.67
  5. Step 5: Solve for x
    x = 6,105,612,313.67/89,640.88
  6. Step 6: Final answer
    x = 68,111.92

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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.