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Finding the Fourth Proportional to 66,034.35, 91,126.87 and 35,819.60

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Solution

The fourth proportional to 66,034.35, 91,126.87 and 35,819.60 is: 49,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,034.35 : 91,126.87 = 35,819.60 : x
  2. Step 2: Convert to fraction form
    66,034.35/91,126.87 = 35,819.60/x
  3. Step 3: Cross multiply
    66,034.35x = 91,126.87 × 35,819.60
  4. Step 4: Simplify right side
    66,034.35x = 3,264,128,032.65
  5. Step 5: Solve for x
    x = 3,264,128,032.65/66,034.35
  6. Step 6: Final answer
    x = 49,430.76

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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.