Home / 53,891.76-81,020.07-43,435.16

Finding the Fourth Proportional to 53,891.76, 81,020.07 and 43,435.16

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Solution

The fourth proportional to 53,891.76, 81,020.07 and 43,435.16 is: 65,299.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,891.76 : 81,020.07 = 43,435.16 : x
  2. Step 2: Convert to fraction form
    53,891.76/81,020.07 = 43,435.16/x
  3. Step 3: Cross multiply
    53,891.76x = 81,020.07 × 43,435.16
  4. Step 4: Simplify right side
    53,891.76x = 3,519,119,298.56
  5. Step 5: Solve for x
    x = 3,519,119,298.56/53,891.76
  6. Step 6: Final answer
    x = 65,299.77

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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.