Home / 89,678.48-123,761.92-49,392.24

Finding the Fourth Proportional to 89,678.48, 123,761.92 and 49,392.24

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Solution

The fourth proportional to 89,678.48, 123,761.92 and 49,392.24 is: 68,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,678.48 : 123,761.92 = 49,392.24 : x
  2. Step 2: Convert to fraction form
    89,678.48/123,761.92 = 49,392.24/x
  3. Step 3: Cross multiply
    89,678.48x = 123,761.92 × 49,392.24
  4. Step 4: Simplify right side
    89,678.48x = 6,112,878,455.50
  5. Step 5: Solve for x
    x = 6,112,878,455.50/89,678.48
  6. Step 6: Final answer
    x = 68,164.39

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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.