Home / 77,905.59-107,483.92-43,909.89

Finding the Fourth Proportional to 77,905.59, 107,483.92 and 43,909.89

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Solution

The fourth proportional to 77,905.59, 107,483.92 and 43,909.89 is: 60,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,905.59 : 107,483.92 = 43,909.89 : x
  2. Step 2: Convert to fraction form
    77,905.59/107,483.92 = 43,909.89/x
  3. Step 3: Cross multiply
    77,905.59x = 107,483.92 × 43,909.89
  4. Step 4: Simplify right side
    77,905.59x = 4,719,607,103.97
  5. Step 5: Solve for x
    x = 4,719,607,103.97/77,905.59
  6. Step 6: Final answer
    x = 60,581.11

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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.