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Finding the Fourth Proportional to 77,804.48, 107,241.10 and 55,114.35

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Solution

The fourth proportional to 77,804.48, 107,241.10 and 55,114.35 is: 75,966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,804.48 : 107,241.10 = 55,114.35 : x
  2. Step 2: Convert to fraction form
    77,804.48/107,241.10 = 55,114.35/x
  3. Step 3: Cross multiply
    77,804.48x = 107,241.10 × 55,114.35
  4. Step 4: Simplify right side
    77,804.48x = 5,910,523,519.79
  5. Step 5: Solve for x
    x = 5,910,523,519.79/77,804.48
  6. Step 6: Final answer
    x = 75,966.37

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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.