Home / 63,638.20-87,818.29-35,345.71

Finding the Fourth Proportional to 63,638.20, 87,818.29 and 35,345.71

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Solution

The fourth proportional to 63,638.20, 87,818.29 and 35,345.71 is: 48,775.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,638.20 : 87,818.29 = 35,345.71 : x
  2. Step 2: Convert to fraction form
    63,638.20/87,818.29 = 35,345.71/x
  3. Step 3: Cross multiply
    63,638.20x = 87,818.29 × 35,345.71
  4. Step 4: Simplify right side
    63,638.20x = 3,103,999,811.04
  5. Step 5: Solve for x
    x = 3,103,999,811.04/63,638.20
  6. Step 6: Final answer
    x = 48,775.73

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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.