Home / 54,463.27-81,699.95-21,185.86

Finding the Fourth Proportional to 54,463.27, 81,699.95 and 21,185.86

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Solution

The fourth proportional to 54,463.27, 81,699.95 and 21,185.86 is: 31,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,463.27 : 81,699.95 = 21,185.86 : x
  2. Step 2: Convert to fraction form
    54,463.27/81,699.95 = 21,185.86/x
  3. Step 3: Cross multiply
    54,463.27x = 81,699.95 × 21,185.86
  4. Step 4: Simplify right side
    54,463.27x = 1,730,883,702.71
  5. Step 5: Solve for x
    x = 1,730,883,702.71/54,463.27
  6. Step 6: Final answer
    x = 31,780.75

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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.