Home / 54,312.36-81,476.30-20,569.28

Finding the Fourth Proportional to 54,312.36, 81,476.30 and 20,569.28

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Solution

The fourth proportional to 54,312.36, 81,476.30 and 20,569.28 is: 30,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,312.36 : 81,476.30 = 20,569.28 : x
  2. Step 2: Convert to fraction form
    54,312.36/81,476.30 = 20,569.28/x
  3. Step 3: Cross multiply
    54,312.36x = 81,476.30 × 20,569.28
  4. Step 4: Simplify right side
    54,312.36x = 1,675,908,472.11
  5. Step 5: Solve for x
    x = 1,675,908,472.11/54,312.36
  6. Step 6: Final answer
    x = 30,856.85

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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.