Home / 40,276.80-60,366.60-20,545.20

Finding the Fourth Proportional to 40,276.80, 60,366.60 and 20,545.20

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Solution

The fourth proportional to 40,276.80, 60,366.60 and 20,545.20 is: 30,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,276.80 : 60,366.60 = 20,545.20 : x
  2. Step 2: Convert to fraction form
    40,276.80/60,366.60 = 20,545.20/x
  3. Step 3: Cross multiply
    40,276.80x = 60,366.60 × 20,545.20
  4. Step 4: Simplify right side
    40,276.80x = 1,240,243,870.32
  5. Step 5: Solve for x
    x = 1,240,243,870.32/40,276.80
  6. Step 6: Final answer
    x = 30,793.01

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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.