Home / 67,912.28-93,718.92-39,612.50

Finding the Fourth Proportional to 67,912.28, 93,718.92 and 39,612.50

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Solution

The fourth proportional to 67,912.28, 93,718.92 and 39,612.50 is: 54,665.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,912.28 : 93,718.92 = 39,612.50 : x
  2. Step 2: Convert to fraction form
    67,912.28/93,718.92 = 39,612.50/x
  3. Step 3: Cross multiply
    67,912.28x = 93,718.92 × 39,612.50
  4. Step 4: Simplify right side
    67,912.28x = 3,712,440,718.50
  5. Step 5: Solve for x
    x = 3,712,440,718.50/67,912.28
  6. Step 6: Final answer
    x = 54,665.23

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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.