Home / 80,967.93-121,448.04-28,373.41

Finding the Fourth Proportional to 80,967.93, 121,448.04 and 28,373.41

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Solution

The fourth proportional to 80,967.93, 121,448.04 and 28,373.41 is: 42,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,967.93 : 121,448.04 = 28,373.41 : x
  2. Step 2: Convert to fraction form
    80,967.93/121,448.04 = 28,373.41/x
  3. Step 3: Cross multiply
    80,967.93x = 121,448.04 × 28,373.41
  4. Step 4: Simplify right side
    80,967.93x = 3,445,895,032.62
  5. Step 5: Solve for x
    x = 3,445,895,032.62/80,967.93
  6. Step 6: Final answer
    x = 42,558.76

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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.