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Finding the Fourth Proportional to 77,092.80, 106,406.04 and 50,188.68

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Solution

The fourth proportional to 77,092.80, 106,406.04 and 50,188.68 is: 69,272.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,092.80 : 106,406.04 = 50,188.68 : x
  2. Step 2: Convert to fraction form
    77,092.80/106,406.04 = 50,188.68/x
  3. Step 3: Cross multiply
    77,092.80x = 106,406.04 × 50,188.68
  4. Step 4: Simplify right side
    77,092.80x = 5,340,378,691.63
  5. Step 5: Solve for x
    x = 5,340,378,691.63/77,092.80
  6. Step 6: Final answer
    x = 69,272.08

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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.