Home / 54,991.10-82,430.48-21,665.32

Finding the Fourth Proportional to 54,991.10, 82,430.48 and 21,665.32

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Solution

The fourth proportional to 54,991.10, 82,430.48 and 21,665.32 is: 32,475.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,991.10 : 82,430.48 = 21,665.32 : x
  2. Step 2: Convert to fraction form
    54,991.10/82,430.48 = 21,665.32/x
  3. Step 3: Cross multiply
    54,991.10x = 82,430.48 × 21,665.32
  4. Step 4: Simplify right side
    54,991.10x = 1,785,882,726.95
  5. Step 5: Solve for x
    x = 1,785,882,726.95/54,991.10
  6. Step 6: Final answer
    x = 32,475.85

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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.