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Finding the Fourth Proportional to 77,871.69, 107,458.83 and 43,880.22

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Solution

The fourth proportional to 77,871.69, 107,458.83 and 43,880.22 is: 60,552.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,871.69 : 107,458.83 = 43,880.22 : x
  2. Step 2: Convert to fraction form
    77,871.69/107,458.83 = 43,880.22/x
  3. Step 3: Cross multiply
    77,871.69x = 107,458.83 × 43,880.22
  4. Step 4: Simplify right side
    77,871.69x = 4,715,317,101.34
  5. Step 5: Solve for x
    x = 4,715,317,101.34/77,871.69
  6. Step 6: Final answer
    x = 60,552.39

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1.5x scale

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.