Home / 79,789.66-119,724.89-53,153.82

Finding the Fourth Proportional to 79,789.66, 119,724.89 and 53,153.82

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Solution

The fourth proportional to 79,789.66, 119,724.89 and 53,153.82 is: 79,757.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.66 : 119,724.89 = 53,153.82 : x
  2. Step 2: Convert to fraction form
    79,789.66/119,724.89 = 53,153.82/x
  3. Step 3: Cross multiply
    79,789.66x = 119,724.89 × 53,153.82
  4. Step 4: Simplify right side
    79,789.66x = 6,363,834,986.81
  5. Step 5: Solve for x
    x = 6,363,834,986.81/79,789.66
  6. Step 6: Final answer
    x = 79,757.64

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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.