Home / 89,920.15-124,089.81-49,633.92

Finding the Fourth Proportional to 89,920.15, 124,089.81 and 49,633.92

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Solution

The fourth proportional to 89,920.15, 124,089.81 and 49,633.92 is: 68,494.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,920.15 : 124,089.81 = 49,633.92 : x
  2. Step 2: Convert to fraction form
    89,920.15/124,089.81 = 49,633.92/x
  3. Step 3: Cross multiply
    89,920.15x = 124,089.81 × 49,633.92
  4. Step 4: Simplify right side
    89,920.15x = 6,159,063,702.36
  5. Step 5: Solve for x
    x = 6,159,063,702.36/89,920.15
  6. Step 6: Final answer
    x = 68,494.81

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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.