Home / 78,811.57-108,760.32-43,002.34

Finding the Fourth Proportional to 78,811.57, 108,760.32 and 43,002.34

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Solution

The fourth proportional to 78,811.57, 108,760.32 and 43,002.34 is: 59,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,811.57 : 108,760.32 = 43,002.34 : x
  2. Step 2: Convert to fraction form
    78,811.57/108,760.32 = 43,002.34/x
  3. Step 3: Cross multiply
    78,811.57x = 108,760.32 × 43,002.34
  4. Step 4: Simplify right side
    78,811.57x = 4,676,947,715.35
  5. Step 5: Solve for x
    x = 4,676,947,715.35/78,811.57
  6. Step 6: Final answer
    x = 59,343.42

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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.