Home / 78,056.19-117,084.96-18,891.95

Finding the Fourth Proportional to 78,056.19, 117,084.96 and 18,891.95

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Solution

The fourth proportional to 78,056.19, 117,084.96 and 18,891.95 is: 28,338.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,056.19 : 117,084.96 = 18,891.95 : x
  2. Step 2: Convert to fraction form
    78,056.19/117,084.96 = 18,891.95/x
  3. Step 3: Cross multiply
    78,056.19x = 117,084.96 × 18,891.95
  4. Step 4: Simplify right side
    78,056.19x = 2,211,962,624.65
  5. Step 5: Solve for x
    x = 2,211,962,624.65/78,056.19
  6. Step 6: Final answer
    x = 28,338.08

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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.