Home / 81,897.11-122,875.70-34,524.12

Finding the Fourth Proportional to 81,897.11, 122,875.70 and 34,524.12

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Solution

The fourth proportional to 81,897.11, 122,875.70 and 34,524.12 is: 51,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,897.11 : 122,875.70 = 34,524.12 : x
  2. Step 2: Convert to fraction form
    81,897.11/122,875.70 = 34,524.12/x
  3. Step 3: Cross multiply
    81,897.11x = 122,875.70 × 34,524.12
  4. Step 4: Simplify right side
    81,897.11x = 4,242,175,239.26
  5. Step 5: Solve for x
    x = 4,242,175,239.26/81,897.11
  6. Step 6: Final answer
    x = 51,798.84

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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.