Home / 54,352.02-81,512.22-21,064.65

Finding the Fourth Proportional to 54,352.02, 81,512.22 and 21,064.65

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Solution

The fourth proportional to 54,352.02, 81,512.22 and 21,064.65 is: 31,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,352.02 : 81,512.22 = 21,064.65 : x
  2. Step 2: Convert to fraction form
    54,352.02/81,512.22 = 21,064.65/x
  3. Step 3: Cross multiply
    54,352.02x = 81,512.22 × 21,064.65
  4. Step 4: Simplify right side
    54,352.02x = 1,717,026,385.02
  5. Step 5: Solve for x
    x = 1,717,026,385.02/54,352.02
  6. Step 6: Final answer
    x = 31,590.85

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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.