Home / 57,412.32-79,138.80-52,591.20

Finding the Fourth Proportional to 57,412.32, 79,138.80 and 52,591.20

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Solution

The fourth proportional to 57,412.32, 79,138.80 and 52,591.20 is: 72,493.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,412.32 : 79,138.80 = 52,591.20 : x
  2. Step 2: Convert to fraction form
    57,412.32/79,138.80 = 52,591.20/x
  3. Step 3: Cross multiply
    57,412.32x = 79,138.80 × 52,591.20
  4. Step 4: Simplify right side
    57,412.32x = 4,162,004,458.56
  5. Step 5: Solve for x
    x = 4,162,004,458.56/57,412.32
  6. Step 6: Final answer
    x = 72,493.23

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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.