Home / 91,615.43-137,397.63-32,435.21

Finding the Fourth Proportional to 91,615.43, 137,397.63 and 32,435.21

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Solution

The fourth proportional to 91,615.43, 137,397.63 and 32,435.21 is: 48,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,615.43 : 137,397.63 = 32,435.21 : x
  2. Step 2: Convert to fraction form
    91,615.43/137,397.63 = 32,435.21/x
  3. Step 3: Cross multiply
    91,615.43x = 137,397.63 × 32,435.21
  4. Step 4: Simplify right side
    91,615.43x = 4,456,520,982.55
  5. Step 5: Solve for x
    x = 4,456,520,982.55/91,615.43
  6. Step 6: Final answer
    x = 48,643.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.