Home / 80,968.80-121,453.20-25,564.80

Finding the Fourth Proportional to 80,968.80, 121,453.20 and 25,564.80

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Solution

The fourth proportional to 80,968.80, 121,453.20 and 25,564.80 is: 38,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,968.80 : 121,453.20 = 25,564.80 : x
  2. Step 2: Convert to fraction form
    80,968.80/121,453.20 = 25,564.80/x
  3. Step 3: Cross multiply
    80,968.80x = 121,453.20 × 25,564.80
  4. Step 4: Simplify right side
    80,968.80x = 3,104,926,767.36
  5. Step 5: Solve for x
    x = 3,104,926,767.36/80,968.80
  6. Step 6: Final answer
    x = 38,347.20

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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.