Home / 68,422.89-102,666.84-47,395.29

Finding the Fourth Proportional to 68,422.89, 102,666.84 and 47,395.29

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Solution

The fourth proportional to 68,422.89, 102,666.84 and 47,395.29 is: 71,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,422.89 : 102,666.84 = 47,395.29 : x
  2. Step 2: Convert to fraction form
    68,422.89/102,666.84 = 47,395.29/x
  3. Step 3: Cross multiply
    68,422.89x = 102,666.84 × 47,395.29
  4. Step 4: Simplify right side
    68,422.89x = 4,865,924,655.18
  5. Step 5: Solve for x
    x = 4,865,924,655.18/68,422.89
  6. Step 6: Final answer
    x = 71,115.45

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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.