Home / 40,980.10-61,470.15-20,200.90

Finding the Fourth Proportional to 40,980.10, 61,470.15 and 20,200.90

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Solution

The fourth proportional to 40,980.10, 61,470.15 and 20,200.90 is: 30,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,980.10 : 61,470.15 = 20,200.90 : x
  2. Step 2: Convert to fraction form
    40,980.10/61,470.15 = 20,200.90/x
  3. Step 3: Cross multiply
    40,980.10x = 61,470.15 × 20,200.90
  4. Step 4: Simplify right side
    40,980.10x = 1,241,752,353.14
  5. Step 5: Solve for x
    x = 1,241,752,353.14/40,980.10
  6. Step 6: Final answer
    x = 30,301.35

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1.5x scale

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.