Home / 40,938.40-61,321.20-32,125.60

Finding the Fourth Proportional to 40,938.40, 61,321.20 and 32,125.60

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Solution

The fourth proportional to 40,938.40, 61,321.20 and 32,125.60 is: 48,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,938.40 : 61,321.20 = 32,125.60 : x
  2. Step 2: Convert to fraction form
    40,938.40/61,321.20 = 32,125.60/x
  3. Step 3: Cross multiply
    40,938.40x = 61,321.20 × 32,125.60
  4. Step 4: Simplify right side
    40,938.40x = 1,969,980,342.72
  5. Step 5: Solve for x
    x = 1,969,980,342.72/40,938.40
  6. Step 6: Final answer
    x = 48,120.60

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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.