Home / 78,369.36-108,148.20-44,377.28

Finding the Fourth Proportional to 78,369.36, 108,148.20 and 44,377.28

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Solution

The fourth proportional to 78,369.36, 108,148.20 and 44,377.28 is: 61,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,369.36 : 108,148.20 = 44,377.28 : x
  2. Step 2: Convert to fraction form
    78,369.36/108,148.20 = 44,377.28/x
  3. Step 3: Cross multiply
    78,369.36x = 108,148.20 × 44,377.28
  4. Step 4: Simplify right side
    78,369.36x = 4,799,322,952.90
  5. Step 5: Solve for x
    x = 4,799,322,952.90/78,369.36
  6. Step 6: Final answer
    x = 61,239.79

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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.