Home / 80,968.03-121,452.05-28,377.51

Finding the Fourth Proportional to 80,968.03, 121,452.05 and 28,377.51

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Solution

The fourth proportional to 80,968.03, 121,452.05 and 28,377.51 is: 42,566.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,968.03 : 121,452.05 = 28,377.51 : x
  2. Step 2: Convert to fraction form
    80,968.03/121,452.05 = 28,377.51/x
  3. Step 3: Cross multiply
    80,968.03x = 121,452.05 × 28,377.51
  4. Step 4: Simplify right side
    80,968.03x = 3,446,506,763.40
  5. Step 5: Solve for x
    x = 3,446,506,763.40/80,968.03
  6. Step 6: Final answer
    x = 42,566.27

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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.