Home / 68,638.61-94,721.33-38,423.99

Finding the Fourth Proportional to 68,638.61, 94,721.33 and 38,423.99

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Solution

The fourth proportional to 68,638.61, 94,721.33 and 38,423.99 is: 53,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,638.61 : 94,721.33 = 38,423.99 : x
  2. Step 2: Convert to fraction form
    68,638.61/94,721.33 = 38,423.99/x
  3. Step 3: Cross multiply
    68,638.61x = 94,721.33 × 38,423.99
  4. Step 4: Simplify right side
    68,638.61x = 3,639,571,769.57
  5. Step 5: Solve for x
    x = 3,639,571,769.57/68,638.61
  6. Step 6: Final answer
    x = 53,025.14

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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.