Home / 78,364.06-108,143.69-44,371.65

Finding the Fourth Proportional to 78,364.06, 108,143.69 and 44,371.65

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Solution

The fourth proportional to 78,364.06, 108,143.69 and 44,371.65 is: 61,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,364.06 : 108,143.69 = 44,371.65 : x
  2. Step 2: Convert to fraction form
    78,364.06/108,143.69 = 44,371.65/x
  3. Step 3: Cross multiply
    78,364.06x = 108,143.69 × 44,371.65
  4. Step 4: Simplify right side
    78,364.06x = 4,798,514,073.32
  5. Step 5: Solve for x
    x = 4,798,514,073.32/78,364.06
  6. Step 6: Final answer
    x = 61,233.61

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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.