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Finding the Fourth Proportional to 63,686.88, 87,889.68 and 36,826.80

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Solution

The fourth proportional to 63,686.88, 87,889.68 and 36,826.80 is: 50,822.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,686.88 : 87,889.68 = 36,826.80 : x
  2. Step 2: Convert to fraction form
    63,686.88/87,889.68 = 36,826.80/x
  3. Step 3: Cross multiply
    63,686.88x = 87,889.68 × 36,826.80
  4. Step 4: Simplify right side
    63,686.88x = 3,236,695,667.42
  5. Step 5: Solve for x
    x = 3,236,695,667.42/63,686.88
  6. Step 6: Final answer
    x = 50,822.02

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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.