Home / 54,311.30-81,407.55-19,232.90

Finding the Fourth Proportional to 54,311.30, 81,407.55 and 19,232.90

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Solution

The fourth proportional to 54,311.30, 81,407.55 and 19,232.90 is: 28,828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,311.30 : 81,407.55 = 19,232.90 : x
  2. Step 2: Convert to fraction form
    54,311.30/81,407.55 = 19,232.90/x
  3. Step 3: Cross multiply
    54,311.30x = 81,407.55 × 19,232.90
  4. Step 4: Simplify right side
    54,311.30x = 1,565,703,268.40
  5. Step 5: Solve for x
    x = 1,565,703,268.40/54,311.30
  6. Step 6: Final answer
    x = 28,828.32

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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.