Home / 54,902.18-82,404.30-21,645.20

Finding the Fourth Proportional to 54,902.18, 82,404.30 and 21,645.20

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Solution

The fourth proportional to 54,902.18, 82,404.30 and 21,645.20 is: 32,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,902.18 : 82,404.30 = 21,645.20 : x
  2. Step 2: Convert to fraction form
    54,902.18/82,404.30 = 21,645.20/x
  3. Step 3: Cross multiply
    54,902.18x = 82,404.30 × 21,645.20
  4. Step 4: Simplify right side
    54,902.18x = 1,783,657,554.36
  5. Step 5: Solve for x
    x = 1,783,657,554.36/54,902.18
  6. Step 6: Final answer
    x = 32,487.92

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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.