Home / 81,837.46-112,446.26-65,041.30

Finding the Fourth Proportional to 81,837.46, 112,446.26 and 65,041.30

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Solution

The fourth proportional to 81,837.46, 112,446.26 and 65,041.30 is: 89,368.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,837.46 : 112,446.26 = 65,041.30 : x
  2. Step 2: Convert to fraction form
    81,837.46/112,446.26 = 65,041.30/x
  3. Step 3: Cross multiply
    81,837.46x = 112,446.26 × 65,041.30
  4. Step 4: Simplify right side
    81,837.46x = 7,313,650,930.54
  5. Step 5: Solve for x
    x = 7,313,650,930.54/81,837.46
  6. Step 6: Final answer
    x = 89,368.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.