Home / 66,147.26-91,281.69-35,931.90

Finding the Fourth Proportional to 66,147.26, 91,281.69 and 35,931.90

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Solution

The fourth proportional to 66,147.26, 91,281.69 and 35,931.90 is: 49,585.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,147.26 : 91,281.69 = 35,931.90 : x
  2. Step 2: Convert to fraction form
    66,147.26/91,281.69 = 35,931.90/x
  3. Step 3: Cross multiply
    66,147.26x = 91,281.69 × 35,931.90
  4. Step 4: Simplify right side
    66,147.26x = 3,279,924,556.91
  5. Step 5: Solve for x
    x = 3,279,924,556.91/66,147.26
  6. Step 6: Final answer
    x = 49,585.19

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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.