Home / 78,909.32-108,891.81-44,453.36

Finding the Fourth Proportional to 78,909.32, 108,891.81 and 44,453.36

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Solution

The fourth proportional to 78,909.32, 108,891.81 and 44,453.36 is: 61,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909.32 : 108,891.81 = 44,453.36 : x
  2. Step 2: Convert to fraction form
    78,909.32/108,891.81 = 44,453.36/x
  3. Step 3: Cross multiply
    78,909.32x = 108,891.81 × 44,453.36
  4. Step 4: Simplify right side
    78,909.32x = 4,840,607,103.21
  5. Step 5: Solve for x
    x = 4,840,607,103.21/78,909.32
  6. Step 6: Final answer
    x = 61,343.92

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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.