Home / 68,132.34-102,154.76-47,013.21

Finding the Fourth Proportional to 68,132.34, 102,154.76 and 47,013.21

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Solution

The fourth proportional to 68,132.34, 102,154.76 and 47,013.21 is: 70,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,132.34 : 102,154.76 = 47,013.21 : x
  2. Step 2: Convert to fraction form
    68,132.34/102,154.76 = 47,013.21/x
  3. Step 3: Cross multiply
    68,132.34x = 102,154.76 × 47,013.21
  4. Step 4: Simplify right side
    68,132.34x = 4,802,623,184.38
  5. Step 5: Solve for x
    x = 4,802,623,184.38/68,132.34
  6. Step 6: Final answer
    x = 70,489.63

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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.