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Finding the Fourth Proportional to 87,294.61, 130,840.36 and 49,880.91

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Solution

The fourth proportional to 87,294.61, 130,840.36 and 49,880.91 is: 74,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,294.61 : 130,840.36 = 49,880.91 : x
  2. Step 2: Convert to fraction form
    87,294.61/130,840.36 = 49,880.91/x
  3. Step 3: Cross multiply
    87,294.61x = 130,840.36 × 49,880.91
  4. Step 4: Simplify right side
    87,294.61x = 6,526,436,096.83
  5. Step 5: Solve for x
    x = 6,526,436,096.83/87,294.61
  6. Step 6: Final answer
    x = 74,763.34

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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.