Home / 80,772.60-121,178.40-25,368.60

Finding the Fourth Proportional to 80,772.60, 121,178.40 and 25,368.60

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Solution

The fourth proportional to 80,772.60, 121,178.40 and 25,368.60 is: 38,059.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,772.60 : 121,178.40 = 25,368.60 : x
  2. Step 2: Convert to fraction form
    80,772.60/121,178.40 = 25,368.60/x
  3. Step 3: Cross multiply
    80,772.60x = 121,178.40 × 25,368.60
  4. Step 4: Simplify right side
    80,772.60x = 3,074,126,358.24
  5. Step 5: Solve for x
    x = 3,074,126,358.24/80,772.60
  6. Step 6: Final answer
    x = 38,059.02

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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.