Home / 78,377.20-108,159.78-44,384.80

Finding the Fourth Proportional to 78,377.20, 108,159.78 and 44,384.80

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Solution

The fourth proportional to 78,377.20, 108,159.78 and 44,384.80 is: 61,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,377.20 : 108,159.78 = 44,384.80 : x
  2. Step 2: Convert to fraction form
    78,377.20/108,159.78 = 44,384.80/x
  3. Step 3: Cross multiply
    78,377.20x = 108,159.78 × 44,384.80
  4. Step 4: Simplify right side
    78,377.20x = 4,800,650,203.34
  5. Step 5: Solve for x
    x = 4,800,650,203.34/78,377.20
  6. Step 6: Final answer
    x = 61,250.60

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1.5x scale

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.