Home / 45,007.20-67,381.20-40,341.60

Finding the Fourth Proportional to 45,007.20, 67,381.20 and 40,341.60

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Solution

The fourth proportional to 45,007.20, 67,381.20 and 40,341.60 is: 60,396.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,007.20 : 67,381.20 = 40,341.60 : x
  2. Step 2: Convert to fraction form
    45,007.20/67,381.20 = 40,341.60/x
  3. Step 3: Cross multiply
    45,007.20x = 67,381.20 × 40,341.60
  4. Step 4: Simplify right side
    45,007.20x = 2,718,265,417.92
  5. Step 5: Solve for x
    x = 2,718,265,417.92/45,007.20
  6. Step 6: Final answer
    x = 60,396.23

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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.