Home / 71,719.10-107,578.65-51,904.70

Finding the Fourth Proportional to 71,719.10, 107,578.65 and 51,904.70

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Solution

The fourth proportional to 71,719.10, 107,578.65 and 51,904.70 is: 77,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,719.10 : 107,578.65 = 51,904.70 : x
  2. Step 2: Convert to fraction form
    71,719.10/107,578.65 = 51,904.70/x
  3. Step 3: Cross multiply
    71,719.10x = 107,578.65 × 51,904.70
  4. Step 4: Simplify right side
    71,719.10x = 5,583,837,554.66
  5. Step 5: Solve for x
    x = 5,583,837,554.66/71,719.10
  6. Step 6: Final answer
    x = 77,857.05

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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.