Home / 57,213.20-85,818.45-15,660.20

Finding the Fourth Proportional to 57,213.20, 85,818.45 and 15,660.20

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Solution

The fourth proportional to 57,213.20, 85,818.45 and 15,660.20 is: 23,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,213.20 : 85,818.45 = 15,660.20 : x
  2. Step 2: Convert to fraction form
    57,213.20/85,818.45 = 15,660.20/x
  3. Step 3: Cross multiply
    57,213.20x = 85,818.45 × 15,660.20
  4. Step 4: Simplify right side
    57,213.20x = 1,343,934,090.69
  5. Step 5: Solve for x
    x = 1,343,934,090.69/57,213.20
  6. Step 6: Final answer
    x = 23,489.93

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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.