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Finding the Fourth Proportional to 73,011.30, 109,452.15 and 43,397.70

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Solution

The fourth proportional to 73,011.30, 109,452.15 and 43,397.70 is: 65,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,011.30 : 109,452.15 = 43,397.70 : x
  2. Step 2: Convert to fraction form
    73,011.30/109,452.15 = 43,397.70/x
  3. Step 3: Cross multiply
    73,011.30x = 109,452.15 × 43,397.70
  4. Step 4: Simplify right side
    73,011.30x = 4,749,971,570.06
  5. Step 5: Solve for x
    x = 4,749,971,570.06/73,011.30
  6. Step 6: Final answer
    x = 65,058.03

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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.