Home / 78,178.20-117,316.44-44,963.07

Finding the Fourth Proportional to 78,178.20, 117,316.44 and 44,963.07

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Solution

The fourth proportional to 78,178.20, 117,316.44 and 44,963.07 is: 67,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,178.20 : 117,316.44 = 44,963.07 : x
  2. Step 2: Convert to fraction form
    78,178.20/117,316.44 = 44,963.07/x
  3. Step 3: Cross multiply
    78,178.20x = 117,316.44 × 44,963.07
  4. Step 4: Simplify right side
    78,178.20x = 5,274,907,303.87
  5. Step 5: Solve for x
    x = 5,274,907,303.87/78,178.20
  6. Step 6: Final answer
    x = 67,472.87

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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.