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Finding the Fourth Proportional to 69,189.78, 95,442.12 and 43,687.08

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Solution

The fourth proportional to 69,189.78, 95,442.12 and 43,687.08 is: 60,263.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,189.78 : 95,442.12 = 43,687.08 : x
  2. Step 2: Convert to fraction form
    69,189.78/95,442.12 = 43,687.08/x
  3. Step 3: Cross multiply
    69,189.78x = 95,442.12 × 43,687.08
  4. Step 4: Simplify right side
    69,189.78x = 4,169,587,531.81
  5. Step 5: Solve for x
    x = 4,169,587,531.81/69,189.78
  6. Step 6: Final answer
    x = 60,263.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.