Home / 40,145.80-60,219.12-16,772.20

Finding the Fourth Proportional to 40,145.80, 60,219.12 and 16,772.20

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Solution

The fourth proportional to 40,145.80, 60,219.12 and 16,772.20 is: 25,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.80 : 60,219.12 = 16,772.20 : x
  2. Step 2: Convert to fraction form
    40,145.80/60,219.12 = 16,772.20/x
  3. Step 3: Cross multiply
    40,145.80x = 60,219.12 × 16,772.20
  4. Step 4: Simplify right side
    40,145.80x = 1,010,007,124.46
  5. Step 5: Solve for x
    x = 1,010,007,124.46/40,145.80
  6. Step 6: Final answer
    x = 25,158.48

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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.