Home / 79,389.47-119,022.06-54,353.81

Finding the Fourth Proportional to 79,389.47, 119,022.06 and 54,353.81

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Solution

The fourth proportional to 79,389.47, 119,022.06 and 54,353.81 is: 81,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,389.47 : 119,022.06 = 54,353.81 : x
  2. Step 2: Convert to fraction form
    79,389.47/119,022.06 = 54,353.81/x
  3. Step 3: Cross multiply
    79,389.47x = 119,022.06 × 54,353.81
  4. Step 4: Simplify right side
    79,389.47x = 6,469,302,435.05
  5. Step 5: Solve for x
    x = 6,469,302,435.05/79,389.47
  6. Step 6: Final answer
    x = 81,488.17

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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.