Home / 81,042.33-121,618.14-28,452.27

Finding the Fourth Proportional to 81,042.33, 121,618.14 and 28,452.27

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Solution

The fourth proportional to 81,042.33, 121,618.14 and 28,452.27 is: 42,697.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,042.33 : 121,618.14 = 28,452.27 : x
  2. Step 2: Convert to fraction form
    81,042.33/121,618.14 = 28,452.27/x
  3. Step 3: Cross multiply
    81,042.33x = 121,618.14 × 28,452.27
  4. Step 4: Simplify right side
    81,042.33x = 3,460,312,156.18
  5. Step 5: Solve for x
    x = 3,460,312,156.18/81,042.33
  6. Step 6: Final answer
    x = 42,697.59

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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.