Home / 78,898.38-108,879.93-43,089.18

Finding the Fourth Proportional to 78,898.38, 108,879.93 and 43,089.18

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Solution

The fourth proportional to 78,898.38, 108,879.93 and 43,089.18 is: 59,463.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,898.38 : 108,879.93 = 43,089.18 : x
  2. Step 2: Convert to fraction form
    78,898.38/108,879.93 = 43,089.18/x
  3. Step 3: Cross multiply
    78,898.38x = 108,879.93 × 43,089.18
  4. Step 4: Simplify right side
    78,898.38x = 4,691,546,902.16
  5. Step 5: Solve for x
    x = 4,691,546,902.16/78,898.38
  6. Step 6: Final answer
    x = 59,463.16

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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.