Home / 77,815.60-107,384.12-43,823.96

Finding the Fourth Proportional to 77,815.60, 107,384.12 and 43,823.96

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Solution

The fourth proportional to 77,815.60, 107,384.12 and 43,823.96 is: 60,476.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,815.60 : 107,384.12 = 43,823.96 : x
  2. Step 2: Convert to fraction form
    77,815.60/107,384.12 = 43,823.96/x
  3. Step 3: Cross multiply
    77,815.60x = 107,384.12 × 43,823.96
  4. Step 4: Simplify right side
    77,815.60x = 4,705,997,379.52
  5. Step 5: Solve for x
    x = 4,705,997,379.52/77,815.60
  6. Step 6: Final answer
    x = 60,476.27

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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.