Home / 81,316.20-122,026.34-43,902.35

Finding the Fourth Proportional to 81,316.20, 122,026.34 and 43,902.35

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Solution

The fourth proportional to 81,316.20, 122,026.34 and 43,902.35 is: 65,881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,316.20 : 122,026.34 = 43,902.35 : x
  2. Step 2: Convert to fraction form
    81,316.20/122,026.34 = 43,902.35/x
  3. Step 3: Cross multiply
    81,316.20x = 122,026.34 × 43,902.35
  4. Step 4: Simplify right side
    81,316.20x = 5,357,243,087.90
  5. Step 5: Solve for x
    x = 5,357,243,087.90/81,316.20
  6. Step 6: Final answer
    x = 65,881.62

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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.