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Finding the Fourth Proportional to 87,466.40, 131,048.40 and 40,623.20

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Solution

The fourth proportional to 87,466.40, 131,048.40 and 40,623.20 is: 60,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,466.40 : 131,048.40 = 40,623.20 : x
  2. Step 2: Convert to fraction form
    87,466.40/131,048.40 = 40,623.20/x
  3. Step 3: Cross multiply
    87,466.40x = 131,048.40 × 40,623.20
  4. Step 4: Simplify right side
    87,466.40x = 5,323,605,362.88
  5. Step 5: Solve for x
    x = 5,323,605,362.88/87,466.40
  6. Step 6: Final answer
    x = 60,864.58

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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.