Home / 51,719.84-77,579.63-13,769.11

Finding the Fourth Proportional to 51,719.84, 77,579.63 and 13,769.11

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Solution

The fourth proportional to 51,719.84, 77,579.63 and 13,769.11 is: 20,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.84 : 77,579.63 = 13,769.11 : x
  2. Step 2: Convert to fraction form
    51,719.84/77,579.63 = 13,769.11/x
  3. Step 3: Cross multiply
    51,719.84x = 77,579.63 × 13,769.11
  4. Step 4: Simplify right side
    51,719.84x = 1,068,202,715.73
  5. Step 5: Solve for x
    x = 1,068,202,715.73/51,719.84
  6. Step 6: Final answer
    x = 20,653.63

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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.