Home / 80,994.48-121,467.96-28,394.16

Finding the Fourth Proportional to 80,994.48, 121,467.96 and 28,394.16

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Solution

The fourth proportional to 80,994.48, 121,467.96 and 28,394.16 is: 42,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,994.48 : 121,467.96 = 28,394.16 : x
  2. Step 2: Convert to fraction form
    80,994.48/121,467.96 = 28,394.16/x
  3. Step 3: Cross multiply
    80,994.48x = 121,467.96 × 28,394.16
  4. Step 4: Simplify right side
    80,994.48x = 3,448,980,691.11
  5. Step 5: Solve for x
    x = 3,448,980,691.11/80,994.48
  6. Step 6: Final answer
    x = 42,582.91

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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.