Home / 78,364.47-108,149.67-44,378.96

Finding the Fourth Proportional to 78,364.47, 108,149.67 and 44,378.96

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Solution

The fourth proportional to 78,364.47, 108,149.67 and 44,378.96 is: 61,246.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,364.47 : 108,149.67 = 44,378.96 : x
  2. Step 2: Convert to fraction form
    78,364.47/108,149.67 = 44,378.96/x
  3. Step 3: Cross multiply
    78,364.47x = 108,149.67 × 44,378.96
  4. Step 4: Simplify right side
    78,364.47x = 4,799,570,149.32
  5. Step 5: Solve for x
    x = 4,799,570,149.32/78,364.47
  6. Step 6: Final answer
    x = 61,246.76

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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.