Home / 89,864.10-124,011.54-49,578.66

Finding the Fourth Proportional to 89,864.10, 124,011.54 and 49,578.66

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Solution

The fourth proportional to 89,864.10, 124,011.54 and 49,578.66 is: 68,418.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,864.10 : 124,011.54 = 49,578.66 : x
  2. Step 2: Convert to fraction form
    89,864.10/124,011.54 = 49,578.66/x
  3. Step 3: Cross multiply
    89,864.10x = 124,011.54 × 49,578.66
  4. Step 4: Simplify right side
    89,864.10x = 6,148,325,977.74
  5. Step 5: Solve for x
    x = 6,148,325,977.74/89,864.10
  6. Step 6: Final answer
    x = 68,418.04

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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.