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Finding the Fourth Proportional to 66,259.62, 91,439.34 and 36,045.54

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Solution

The fourth proportional to 66,259.62, 91,439.34 and 36,045.54 is: 49,743.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,259.62 : 91,439.34 = 36,045.54 : x
  2. Step 2: Convert to fraction form
    66,259.62/91,439.34 = 36,045.54/x
  3. Step 3: Cross multiply
    66,259.62x = 91,439.34 × 36,045.54
  4. Step 4: Simplify right side
    66,259.62x = 3,295,980,387.54
  5. Step 5: Solve for x
    x = 3,295,980,387.54/66,259.62
  6. Step 6: Final answer
    x = 49,743.42

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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.