Home / 78,644.24-108,528.49-42,834.14

Finding the Fourth Proportional to 78,644.24, 108,528.49 and 42,834.14

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Solution

The fourth proportional to 78,644.24, 108,528.49 and 42,834.14 is: 59,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,644.24 : 108,528.49 = 42,834.14 : x
  2. Step 2: Convert to fraction form
    78,644.24/108,528.49 = 42,834.14/x
  3. Step 3: Cross multiply
    78,644.24x = 108,528.49 × 42,834.14
  4. Step 4: Simplify right side
    78,644.24x = 4,648,724,534.65
  5. Step 5: Solve for x
    x = 4,648,724,534.65/78,644.24
  6. Step 6: Final answer
    x = 59,110.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.