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Finding the Fourth Proportional to 60,267.65, 90,405.11 and 18,144.20

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Solution

The fourth proportional to 60,267.65, 90,405.11 and 18,144.20 is: 27,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,267.65 : 90,405.11 = 18,144.20 : x
  2. Step 2: Convert to fraction form
    60,267.65/90,405.11 = 18,144.20/x
  3. Step 3: Cross multiply
    60,267.65x = 90,405.11 × 18,144.20
  4. Step 4: Simplify right side
    60,267.65x = 1,640,328,668.24
  5. Step 5: Solve for x
    x = 1,640,328,668.24/60,267.65
  6. Step 6: Final answer
    x = 27,217.40

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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.