Home / 91,619.20-137,432.32-32,455.04

Finding the Fourth Proportional to 91,619.20, 137,432.32 and 32,455.04

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Solution

The fourth proportional to 91,619.20, 137,432.32 and 32,455.04 is: 48,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,619.20 : 137,432.32 = 32,455.04 : x
  2. Step 2: Convert to fraction form
    91,619.20/137,432.32 = 32,455.04/x
  3. Step 3: Cross multiply
    91,619.20x = 137,432.32 × 32,455.04
  4. Step 4: Simplify right side
    91,619.20x = 4,460,371,442.89
  5. Step 5: Solve for x
    x = 4,460,371,442.89/91,619.20
  6. Step 6: Final answer
    x = 48,683.81

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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.