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Finding the Fourth Proportional to 78,550.60, 117,856.14 and 36,452.20

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Solution

The fourth proportional to 78,550.60, 117,856.14 and 36,452.20 is: 54,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,550.60 : 117,856.14 = 36,452.20 : x
  2. Step 2: Convert to fraction form
    78,550.60/117,856.14 = 36,452.20/x
  3. Step 3: Cross multiply
    78,550.60x = 117,856.14 × 36,452.20
  4. Step 4: Simplify right side
    78,550.60x = 4,296,115,586.51
  5. Step 5: Solve for x
    x = 4,296,115,586.51/78,550.60
  6. Step 6: Final answer
    x = 54,692.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.