Home / 80,867.40-121,301.10-63,954.60

Finding the Fourth Proportional to 80,867.40, 121,301.10 and 63,954.60

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Solution

The fourth proportional to 80,867.40, 121,301.10 and 63,954.60 is: 95,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,867.40 : 121,301.10 = 63,954.60 : x
  2. Step 2: Convert to fraction form
    80,867.40/121,301.10 = 63,954.60/x
  3. Step 3: Cross multiply
    80,867.40x = 121,301.10 × 63,954.60
  4. Step 4: Simplify right side
    80,867.40x = 7,757,763,330.06
  5. Step 5: Solve for x
    x = 7,757,763,330.06/80,867.40
  6. Step 6: Final answer
    x = 95,931.90

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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.