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Finding the Fourth Proportional to 66,265, 91,445.70 and 36,458.92

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Solution

The fourth proportional to 66,265, 91,445.70 and 36,458.92 is: 50,313.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,265 : 91,445.70 = 36,458.92 : x
  2. Step 2: Convert to fraction form
    66,265/91,445.70 = 36,458.92/x
  3. Step 3: Cross multiply
    66,265x = 91,445.70 × 36,458.92
  4. Step 4: Simplify right side
    66,265x = 3,334,011,460.64
  5. Step 5: Solve for x
    x = 3,334,011,460.64/66,265
  6. Step 6: Final answer
    x = 50,313.31

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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.