Home / 81,348.04-121,977.39-25,172.52

Finding the Fourth Proportional to 81,348.04, 121,977.39 and 25,172.52

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Solution

The fourth proportional to 81,348.04, 121,977.39 and 25,172.52 is: 37,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,348.04 : 121,977.39 = 25,172.52 : x
  2. Step 2: Convert to fraction form
    81,348.04/121,977.39 = 25,172.52/x
  3. Step 3: Cross multiply
    81,348.04x = 121,977.39 × 25,172.52
  4. Step 4: Simplify right side
    81,348.04x = 3,070,478,289.32
  5. Step 5: Solve for x
    x = 3,070,478,289.32/81,348.04
  6. Step 6: Final answer
    x = 37,744.96

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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.