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Finding the Fourth Proportional to 79,704, 110,002.08 and 51,491.76

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Solution

The fourth proportional to 79,704, 110,002.08 and 51,491.76 is: 71,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,704 : 110,002.08 = 51,491.76 : x
  2. Step 2: Convert to fraction form
    79,704/110,002.08 = 51,491.76/x
  3. Step 3: Cross multiply
    79,704x = 110,002.08 × 51,491.76
  4. Step 4: Simplify right side
    79,704x = 5,664,200,702.86
  5. Step 5: Solve for x
    x = 5,664,200,702.86/79,704
  6. Step 6: Final answer
    x = 71,065.45

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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.