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Finding the Fourth Proportional to 79,307.68, 109,445.52 and 45,784.48

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Solution

The fourth proportional to 79,307.68, 109,445.52 and 45,784.48 is: 63,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,307.68 : 109,445.52 = 45,784.48 : x
  2. Step 2: Convert to fraction form
    79,307.68/109,445.52 = 45,784.48/x
  3. Step 3: Cross multiply
    79,307.68x = 109,445.52 × 45,784.48
  4. Step 4: Simplify right side
    79,307.68x = 5,010,906,221.53
  5. Step 5: Solve for x
    x = 5,010,906,221.53/79,307.68
  6. Step 6: Final answer
    x = 63,183.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.