Home / 54,221.10-81,323.69-31,742.16

Finding the Fourth Proportional to 54,221.10, 81,323.69 and 31,742.16

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Solution

The fourth proportional to 54,221.10, 81,323.69 and 31,742.16 is: 47,608.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,221.10 : 81,323.69 = 31,742.16 : x
  2. Step 2: Convert to fraction form
    54,221.10/81,323.69 = 31,742.16/x
  3. Step 3: Cross multiply
    54,221.10x = 81,323.69 × 31,742.16
  4. Step 4: Simplify right side
    54,221.10x = 2,581,389,421.06
  5. Step 5: Solve for x
    x = 2,581,389,421.06/54,221.10
  6. Step 6: Final answer
    x = 47,608.58

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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.