Home / 81,402.48-122,149.08-43,961.76

Finding the Fourth Proportional to 81,402.48, 122,149.08 and 43,961.76

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Solution

The fourth proportional to 81,402.48, 122,149.08 and 43,961.76 is: 65,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,402.48 : 122,149.08 = 43,961.76 : x
  2. Step 2: Convert to fraction form
    81,402.48/122,149.08 = 43,961.76/x
  3. Step 3: Cross multiply
    81,402.48x = 122,149.08 × 43,961.76
  4. Step 4: Simplify right side
    81,402.48x = 5,369,888,539.18
  5. Step 5: Solve for x
    x = 5,369,888,539.18/81,402.48
  6. Step 6: Final answer
    x = 65,967.14

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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.