Home / 80,966.53-121,449.80-28,376.01

Finding the Fourth Proportional to 80,966.53, 121,449.80 and 28,376.01

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Solution

The fourth proportional to 80,966.53, 121,449.80 and 28,376.01 is: 42,564.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,966.53 : 121,449.80 = 28,376.01 : x
  2. Step 2: Convert to fraction form
    80,966.53/121,449.80 = 28,376.01/x
  3. Step 3: Cross multiply
    80,966.53x = 121,449.80 × 28,376.01
  4. Step 4: Simplify right side
    80,966.53x = 3,446,260,739.30
  5. Step 5: Solve for x
    x = 3,446,260,739.30/80,966.53
  6. Step 6: Final answer
    x = 42,564.02

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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.