Home / 63,638.19-87,815.55-36,782.43

Finding the Fourth Proportional to 63,638.19, 87,815.55 and 36,782.43

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Solution

The fourth proportional to 63,638.19, 87,815.55 and 36,782.43 is: 50,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,638.19 : 87,815.55 = 36,782.43 : x
  2. Step 2: Convert to fraction form
    63,638.19/87,815.55 = 36,782.43/x
  3. Step 3: Cross multiply
    63,638.19x = 87,815.55 × 36,782.43
  4. Step 4: Simplify right side
    63,638.19x = 3,230,069,320.79
  5. Step 5: Solve for x
    x = 3,230,069,320.79/63,638.19
  6. Step 6: Final answer
    x = 50,756.78

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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.