Home / 68,976.10-103,288.47-45,530.98

Finding the Fourth Proportional to 68,976.10, 103,288.47 and 45,530.98

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Solution

The fourth proportional to 68,976.10, 103,288.47 and 45,530.98 is: 68,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,976.10 : 103,288.47 = 45,530.98 : x
  2. Step 2: Convert to fraction form
    68,976.10/103,288.47 = 45,530.98/x
  3. Step 3: Cross multiply
    68,976.10x = 103,288.47 × 45,530.98
  4. Step 4: Simplify right side
    68,976.10x = 4,702,825,261.80
  5. Step 5: Solve for x
    x = 4,702,825,261.80/68,976.10
  6. Step 6: Final answer
    x = 68,180.50

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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.