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Finding the Fourth Proportional to 73,296.80, 109,815.60 and 65,002.40

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Solution

The fourth proportional to 73,296.80, 109,815.60 and 65,002.40 is: 97,388.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,296.80 : 109,815.60 = 65,002.40 : x
  2. Step 2: Convert to fraction form
    73,296.80/109,815.60 = 65,002.40/x
  3. Step 3: Cross multiply
    73,296.80x = 109,815.60 × 65,002.40
  4. Step 4: Simplify right side
    73,296.80x = 7,138,277,557.44
  5. Step 5: Solve for x
    x = 7,138,277,557.44/73,296.80
  6. Step 6: Final answer
    x = 97,388.67

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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.