Home / 52,084.41-78,127.11-12,641.88

Finding the Fourth Proportional to 52,084.41, 78,127.11 and 12,641.88

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Solution

The fourth proportional to 52,084.41, 78,127.11 and 12,641.88 is: 18,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,084.41 : 78,127.11 = 12,641.88 : x
  2. Step 2: Convert to fraction form
    52,084.41/78,127.11 = 12,641.88/x
  3. Step 3: Cross multiply
    52,084.41x = 78,127.11 × 12,641.88
  4. Step 4: Simplify right side
    52,084.41x = 987,673,549.37
  5. Step 5: Solve for x
    x = 987,673,549.37/52,084.41
  6. Step 6: Final answer
    x = 18,962.94

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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.