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Finding the Fourth Proportional to 87,165.99, 130,819.05 and 45,058.46

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Solution

The fourth proportional to 87,165.99, 130,819.05 and 45,058.46 is: 67,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,165.99 : 130,819.05 = 45,058.46 : x
  2. Step 2: Convert to fraction form
    87,165.99/130,819.05 = 45,058.46/x
  3. Step 3: Cross multiply
    87,165.99x = 130,819.05 × 45,058.46
  4. Step 4: Simplify right side
    87,165.99x = 5,894,504,277.57
  5. Step 5: Solve for x
    x = 5,894,504,277.57/87,165.99
  6. Step 6: Final answer
    x = 67,623.90

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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.