Home / 56,285.30-77,822.13-49,286.90

Finding the Fourth Proportional to 56,285.30, 77,822.13 and 49,286.90

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Solution

The fourth proportional to 56,285.30, 77,822.13 and 49,286.90 is: 68,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,285.30 : 77,822.13 = 49,286.90 : x
  2. Step 2: Convert to fraction form
    56,285.30/77,822.13 = 49,286.90/x
  3. Step 3: Cross multiply
    56,285.30x = 77,822.13 × 49,286.90
  4. Step 4: Simplify right side
    56,285.30x = 3,835,611,539.10
  5. Step 5: Solve for x
    x = 3,835,611,539.10/56,285.30
  6. Step 6: Final answer
    x = 68,145.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.