Home / 79,890.65-119,721.79-58,664.17

Finding the Fourth Proportional to 79,890.65, 119,721.79 and 58,664.17

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Solution

The fourth proportional to 79,890.65, 119,721.79 and 58,664.17 is: 87,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,890.65 : 119,721.79 = 58,664.17 : x
  2. Step 2: Convert to fraction form
    79,890.65/119,721.79 = 58,664.17/x
  3. Step 3: Cross multiply
    79,890.65x = 119,721.79 × 58,664.17
  4. Step 4: Simplify right side
    79,890.65x = 7,023,379,202.10
  5. Step 5: Solve for x
    x = 7,023,379,202.10/79,890.65
  6. Step 6: Final answer
    x = 87,912.40

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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.