Home / 40,133.20-60,142.20-29,520.40

Finding the Fourth Proportional to 40,133.20, 60,142.20 and 29,520.40

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Solution

The fourth proportional to 40,133.20, 60,142.20 and 29,520.40 is: 44,238.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,133.20 : 60,142.20 = 29,520.40 : x
  2. Step 2: Convert to fraction form
    40,133.20/60,142.20 = 29,520.40/x
  3. Step 3: Cross multiply
    40,133.20x = 60,142.20 × 29,520.40
  4. Step 4: Simplify right side
    40,133.20x = 1,775,421,800.88
  5. Step 5: Solve for x
    x = 1,775,421,800.88/40,133.20
  6. Step 6: Final answer
    x = 44,238.23

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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.