Home / 71,351.55-107,027.33-66,977.55

Finding the Fourth Proportional to 71,351.55, 107,027.33 and 66,977.55

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Solution

The fourth proportional to 71,351.55, 107,027.33 and 66,977.55 is: 100,466.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,351.55 : 107,027.33 = 66,977.55 : x
  2. Step 2: Convert to fraction form
    71,351.55/107,027.33 = 66,977.55/x
  3. Step 3: Cross multiply
    71,351.55x = 107,027.33 × 66,977.55
  4. Step 4: Simplify right side
    71,351.55x = 7,168,428,011.55
  5. Step 5: Solve for x
    x = 7,168,428,011.55/71,351.55
  6. Step 6: Final answer
    x = 100,466.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.