Home / 57,490.34-79,337.20-31,997.78

Finding the Fourth Proportional to 57,490.34, 79,337.20 and 31,997.78

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Solution

The fourth proportional to 57,490.34, 79,337.20 and 31,997.78 is: 44,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,490.34 : 79,337.20 = 31,997.78 : x
  2. Step 2: Convert to fraction form
    57,490.34/79,337.20 = 31,997.78/x
  3. Step 3: Cross multiply
    57,490.34x = 79,337.20 × 31,997.78
  4. Step 4: Simplify right side
    57,490.34x = 2,538,614,271.42
  5. Step 5: Solve for x
    x = 2,538,614,271.42/57,490.34
  6. Step 6: Final answer
    x = 44,157.23

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1.5x scale

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.