Home / 54,502.50-81,751.45-18,971.92

Finding the Fourth Proportional to 54,502.50, 81,751.45 and 18,971.92

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Solution

The fourth proportional to 54,502.50, 81,751.45 and 18,971.92 is: 28,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,502.50 : 81,751.45 = 18,971.92 : x
  2. Step 2: Convert to fraction form
    54,502.50/81,751.45 = 18,971.92/x
  3. Step 3: Cross multiply
    54,502.50x = 81,751.45 × 18,971.92
  4. Step 4: Simplify right side
    54,502.50x = 1,550,981,560.53
  5. Step 5: Solve for x
    x = 1,550,981,560.53/54,502.50
  6. Step 6: Final answer
    x = 28,457.07

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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.