Home / 63,731.88-87,944.40-35,439.12

Finding the Fourth Proportional to 63,731.88, 87,944.40 and 35,439.12

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Solution

The fourth proportional to 63,731.88, 87,944.40 and 35,439.12 is: 48,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,731.88 : 87,944.40 = 35,439.12 : x
  2. Step 2: Convert to fraction form
    63,731.88/87,944.40 = 35,439.12/x
  3. Step 3: Cross multiply
    63,731.88x = 87,944.40 × 35,439.12
  4. Step 4: Simplify right side
    63,731.88x = 3,116,672,144.93
  5. Step 5: Solve for x
    x = 3,116,672,144.93/63,731.88
  6. Step 6: Final answer
    x = 48,902.87

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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.