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Finding the Fourth Proportional to 71,751.45, 107,627.19 and 21,827.10

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Solution

The fourth proportional to 71,751.45, 107,627.19 and 21,827.10 is: 32,740.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,751.45 : 107,627.19 = 21,827.10 : x
  2. Step 2: Convert to fraction form
    71,751.45/107,627.19 = 21,827.10/x
  3. Step 3: Cross multiply
    71,751.45x = 107,627.19 × 21,827.10
  4. Step 4: Simplify right side
    71,751.45x = 2,349,189,438.85
  5. Step 5: Solve for x
    x = 2,349,189,438.85/71,751.45
  6. Step 6: Final answer
    x = 32,740.65

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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.