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Finding the Fourth Proportional to 63,611.55, 87,780.51 and 35,315.42

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Solution

The fourth proportional to 63,611.55, 87,780.51 and 35,315.42 is: 48,733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,611.55 : 87,780.51 = 35,315.42 : x
  2. Step 2: Convert to fraction form
    63,611.55/87,780.51 = 35,315.42/x
  3. Step 3: Cross multiply
    63,611.55x = 87,780.51 × 35,315.42
  4. Step 4: Simplify right side
    63,611.55x = 3,100,005,139.56
  5. Step 5: Solve for x
    x = 3,100,005,139.56/63,611.55
  6. Step 6: Final answer
    x = 48,733.37

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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.