Home / 51,787.92-71,461.04-28,812.30

Finding the Fourth Proportional to 51,787.92, 71,461.04 and 28,812.30

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Solution

The fourth proportional to 51,787.92, 71,461.04 and 28,812.30 is: 39,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,787.92 : 71,461.04 = 28,812.30 : x
  2. Step 2: Convert to fraction form
    51,787.92/71,461.04 = 28,812.30/x
  3. Step 3: Cross multiply
    51,787.92x = 71,461.04 × 28,812.30
  4. Step 4: Simplify right side
    51,787.92x = 2,058,956,922.79
  5. Step 5: Solve for x
    x = 2,058,956,922.79/51,787.92
  6. Step 6: Final answer
    x = 39,757.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.