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Finding the Fourth Proportional to 80,397.60, 110,820.78 and 63,374.22

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Solution

The fourth proportional to 80,397.60, 110,820.78 and 63,374.22 is: 87,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,397.60 : 110,820.78 = 63,374.22 : x
  2. Step 2: Convert to fraction form
    80,397.60/110,820.78 = 63,374.22/x
  3. Step 3: Cross multiply
    80,397.60x = 110,820.78 × 63,374.22
  4. Step 4: Simplify right side
    80,397.60x = 7,023,180,492.29
  5. Step 5: Solve for x
    x = 7,023,180,492.29/80,397.60
  6. Step 6: Final answer
    x = 87,355.60

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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.