Home / 48,042.40-72,236.40-40,439.20

Finding the Fourth Proportional to 48,042.40, 72,236.40 and 40,439.20

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Solution

The fourth proportional to 48,042.40, 72,236.40 and 40,439.20 is: 60,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,042.40 : 72,236.40 = 40,439.20 : x
  2. Step 2: Convert to fraction form
    48,042.40/72,236.40 = 40,439.20/x
  3. Step 3: Cross multiply
    48,042.40x = 72,236.40 × 40,439.20
  4. Step 4: Simplify right side
    48,042.40x = 2,921,182,226.88
  5. Step 5: Solve for x
    x = 2,921,182,226.88/48,042.40
  6. Step 6: Final answer
    x = 60,804.25

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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.