Home / 54,749.12-82,123.07-21,445.56

Finding the Fourth Proportional to 54,749.12, 82,123.07 and 21,445.56

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Solution

The fourth proportional to 54,749.12, 82,123.07 and 21,445.56 is: 32,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,749.12 : 82,123.07 = 21,445.56 : x
  2. Step 2: Convert to fraction form
    54,749.12/82,123.07 = 21,445.56/x
  3. Step 3: Cross multiply
    54,749.12x = 82,123.07 × 21,445.56
  4. Step 4: Simplify right side
    54,749.12x = 1,761,175,117.84
  5. Step 5: Solve for x
    x = 1,761,175,117.84/54,749.12
  6. Step 6: Final answer
    x = 32,168.10

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1.5x scale

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.