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Finding the Fourth Proportional to 73,306.76, 109,885.02 and 28,915.52

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Solution

The fourth proportional to 73,306.76, 109,885.02 and 28,915.52 is: 43,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,306.76 : 109,885.02 = 28,915.52 : x
  2. Step 2: Convert to fraction form
    73,306.76/109,885.02 = 28,915.52/x
  3. Step 3: Cross multiply
    73,306.76x = 109,885.02 × 28,915.52
  4. Step 4: Simplify right side
    73,306.76x = 3,177,382,493.51
  5. Step 5: Solve for x
    x = 3,177,382,493.51/73,306.76
  6. Step 6: Final answer
    x = 43,343.65

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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.