Home / 80,801.03-121,201.55-25,397.03

Finding the Fourth Proportional to 80,801.03, 121,201.55 and 25,397.03

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Solution

The fourth proportional to 80,801.03, 121,201.55 and 25,397.03 is: 38,095.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,801.03 : 121,201.55 = 25,397.03 : x
  2. Step 2: Convert to fraction form
    80,801.03/121,201.55 = 25,397.03/x
  3. Step 3: Cross multiply
    80,801.03x = 121,201.55 × 25,397.03
  4. Step 4: Simplify right side
    80,801.03x = 3,078,159,401.40
  5. Step 5: Solve for x
    x = 3,078,159,401.40/80,801.03
  6. Step 6: Final answer
    x = 38,095.55

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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.