Home / 43,321.40-64,982.10-40,470.20

Finding the Fourth Proportional to 43,321.40, 64,982.10 and 40,470.20

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Solution

The fourth proportional to 43,321.40, 64,982.10 and 40,470.20 is: 60,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321.40 : 64,982.10 = 40,470.20 : x
  2. Step 2: Convert to fraction form
    43,321.40/64,982.10 = 40,470.20/x
  3. Step 3: Cross multiply
    43,321.40x = 64,982.10 × 40,470.20
  4. Step 4: Simplify right side
    43,321.40x = 2,629,838,583.42
  5. Step 5: Solve for x
    x = 2,629,838,583.42/43,321.40
  6. Step 6: Final answer
    x = 60,705.30

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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.