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Finding the Fourth Proportional to 76,765.60, 115,164.60 and 24,180.40

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Solution

The fourth proportional to 76,765.60, 115,164.60 and 24,180.40 is: 36,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,765.60 : 115,164.60 = 24,180.40 : x
  2. Step 2: Convert to fraction form
    76,765.60/115,164.60 = 24,180.40/x
  3. Step 3: Cross multiply
    76,765.60x = 115,164.60 × 24,180.40
  4. Step 4: Simplify right side
    76,765.60x = 2,784,726,093.84
  5. Step 5: Solve for x
    x = 2,784,726,093.84/76,765.60
  6. Step 6: Final answer
    x = 36,275.70

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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.