Home / 56,191.94-84,300.46-21,131.90

Finding the Fourth Proportional to 56,191.94, 84,300.46 and 21,131.90

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Solution

The fourth proportional to 56,191.94, 84,300.46 and 21,131.90 is: 31,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,191.94 : 84,300.46 = 21,131.90 : x
  2. Step 2: Convert to fraction form
    56,191.94/84,300.46 = 21,131.90/x
  3. Step 3: Cross multiply
    56,191.94x = 84,300.46 × 21,131.90
  4. Step 4: Simplify right side
    56,191.94x = 1,781,428,890.67
  5. Step 5: Solve for x
    x = 1,781,428,890.67/56,191.94
  6. Step 6: Final answer
    x = 31,702.57

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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.