Home / 63,211.80-87,228.78-39,337.72

Finding the Fourth Proportional to 63,211.80, 87,228.78 and 39,337.72

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Solution

The fourth proportional to 63,211.80, 87,228.78 and 39,337.72 is: 54,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,211.80 : 87,228.78 = 39,337.72 : x
  2. Step 2: Convert to fraction form
    63,211.80/87,228.78 = 39,337.72/x
  3. Step 3: Cross multiply
    63,211.80x = 87,228.78 × 39,337.72
  4. Step 4: Simplify right side
    63,211.80x = 3,431,381,323.58
  5. Step 5: Solve for x
    x = 3,431,381,323.58/63,211.80
  6. Step 6: Final answer
    x = 54,283.87

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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.