Home / 89,829.92-123,972.32-49,547.36

Finding the Fourth Proportional to 89,829.92, 123,972.32 and 49,547.36

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Solution

The fourth proportional to 89,829.92, 123,972.32 and 49,547.36 is: 68,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,829.92 : 123,972.32 = 49,547.36 : x
  2. Step 2: Convert to fraction form
    89,829.92/123,972.32 = 49,547.36/x
  3. Step 3: Cross multiply
    89,829.92x = 123,972.32 × 49,547.36
  4. Step 4: Simplify right side
    89,829.92x = 6,142,501,169.08
  5. Step 5: Solve for x
    x = 6,142,501,169.08/89,829.92
  6. Step 6: Final answer
    x = 68,379.23

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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.