Home / 54,538.30-81,746.70-21,247.30

Finding the Fourth Proportional to 54,538.30, 81,746.70 and 21,247.30

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Solution

The fourth proportional to 54,538.30, 81,746.70 and 21,247.30 is: 31,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,538.30 : 81,746.70 = 21,247.30 : x
  2. Step 2: Convert to fraction form
    54,538.30/81,746.70 = 21,247.30/x
  3. Step 3: Cross multiply
    54,538.30x = 81,746.70 × 21,247.30
  4. Step 4: Simplify right side
    54,538.30x = 1,736,896,658.91
  5. Step 5: Solve for x
    x = 1,736,896,658.91/54,538.30
  6. Step 6: Final answer
    x = 31,847.28

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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.