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Finding the Fourth Proportional to 47,751.42, 71,627.06 and 12,691.08

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Solution

The fourth proportional to 47,751.42, 71,627.06 and 12,691.08 is: 19,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,751.42 : 71,627.06 = 12,691.08 : x
  2. Step 2: Convert to fraction form
    47,751.42/71,627.06 = 12,691.08/x
  3. Step 3: Cross multiply
    47,751.42x = 71,627.06 × 12,691.08
  4. Step 4: Simplify right side
    47,751.42x = 909,024,748.62
  5. Step 5: Solve for x
    x = 909,024,748.62/47,751.42
  6. Step 6: Final answer
    x = 19,036.60

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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.