Home / 89,451.81-123,444.75-49,169.28

Finding the Fourth Proportional to 89,451.81, 123,444.75 and 49,169.28

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Solution

The fourth proportional to 89,451.81, 123,444.75 and 49,169.28 is: 67,854.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,451.81 : 123,444.75 = 49,169.28 : x
  2. Step 2: Convert to fraction form
    89,451.81/123,444.75 = 49,169.28/x
  3. Step 3: Cross multiply
    89,451.81x = 123,444.75 × 49,169.28
  4. Step 4: Simplify right side
    89,451.81x = 6,069,689,477.28
  5. Step 5: Solve for x
    x = 6,069,689,477.28/89,451.81
  6. Step 6: Final answer
    x = 67,854.29

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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.