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Finding the Fourth Proportional to 45,693.60, 68,540.40 and 29,947.20

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Solution

The fourth proportional to 45,693.60, 68,540.40 and 29,947.20 is: 44,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,693.60 : 68,540.40 = 29,947.20 : x
  2. Step 2: Convert to fraction form
    45,693.60/68,540.40 = 29,947.20/x
  3. Step 3: Cross multiply
    45,693.60x = 68,540.40 × 29,947.20
  4. Step 4: Simplify right side
    45,693.60x = 2,052,593,066.88
  5. Step 5: Solve for x
    x = 2,052,593,066.88/45,693.60
  6. Step 6: Final answer
    x = 44,920.80

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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.