Home / 47,445.60-71,168.40-45,631.20

Finding the Fourth Proportional to 47,445.60, 71,168.40 and 45,631.20

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Solution

The fourth proportional to 47,445.60, 71,168.40 and 45,631.20 is: 68,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,445.60 : 71,168.40 = 45,631.20 : x
  2. Step 2: Convert to fraction form
    47,445.60/71,168.40 = 45,631.20/x
  3. Step 3: Cross multiply
    47,445.60x = 71,168.40 × 45,631.20
  4. Step 4: Simplify right side
    47,445.60x = 3,247,499,494.08
  5. Step 5: Solve for x
    x = 3,247,499,494.08/47,445.60
  6. Step 6: Final answer
    x = 68,446.80

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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.