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Finding the Fourth Proportional to 80,797.50, 121,095 and 43,264.53

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Solution

The fourth proportional to 80,797.50, 121,095 and 43,264.53 is: 64,842.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,797.50 : 121,095 = 43,264.53 : x
  2. Step 2: Convert to fraction form
    80,797.50/121,095 = 43,264.53/x
  3. Step 3: Cross multiply
    80,797.50x = 121,095 × 43,264.53
  4. Step 4: Simplify right side
    80,797.50x = 5,239,118,260.35
  5. Step 5: Solve for x
    x = 5,239,118,260.35/80,797.50
  6. Step 6: Final answer
    x = 64,842.58

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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.