Home / 54,351.45-81,535.28-19,288.17

Finding the Fourth Proportional to 54,351.45, 81,535.28 and 19,288.17

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Solution

The fourth proportional to 54,351.45, 81,535.28 and 19,288.17 is: 28,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,351.45 : 81,535.28 = 19,288.17 : x
  2. Step 2: Convert to fraction form
    54,351.45/81,535.28 = 19,288.17/x
  3. Step 3: Cross multiply
    54,351.45x = 81,535.28 × 19,288.17
  4. Step 4: Simplify right side
    54,351.45x = 1,572,666,245.20
  5. Step 5: Solve for x
    x = 1,572,666,245.20/54,351.45
  6. Step 6: Final answer
    x = 28,935.13

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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.