Home / 78,511.28-108,343.24-44,522.86

Finding the Fourth Proportional to 78,511.28, 108,343.24 and 44,522.86

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Solution

The fourth proportional to 78,511.28, 108,343.24 and 44,522.86 is: 61,440.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,511.28 : 108,343.24 = 44,522.86 : x
  2. Step 2: Convert to fraction form
    78,511.28/108,343.24 = 44,522.86/x
  3. Step 3: Cross multiply
    78,511.28x = 108,343.24 × 44,522.86
  4. Step 4: Simplify right side
    78,511.28x = 4,823,750,906.47
  5. Step 5: Solve for x
    x = 4,823,750,906.47/78,511.28
  6. Step 6: Final answer
    x = 61,440.23

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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.