Home / 54,795.12-82,142.88-19,726.80

Finding the Fourth Proportional to 54,795.12, 82,142.88 and 19,726.80

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Solution

The fourth proportional to 54,795.12, 82,142.88 and 19,726.80 is: 29,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,795.12 : 82,142.88 = 19,726.80 : x
  2. Step 2: Convert to fraction form
    54,795.12/82,142.88 = 19,726.80/x
  3. Step 3: Cross multiply
    54,795.12x = 82,142.88 × 19,726.80
  4. Step 4: Simplify right side
    54,795.12x = 1,620,416,165.18
  5. Step 5: Solve for x
    x = 1,620,416,165.18/54,795.12
  6. Step 6: Final answer
    x = 29,572.27

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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.