Home / 77,408.14-106,723.02-50,135.72

Finding the Fourth Proportional to 77,408.14, 106,723.02 and 50,135.72

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Solution

The fourth proportional to 77,408.14, 106,723.02 and 50,135.72 is: 69,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,408.14 : 106,723.02 = 50,135.72 : x
  2. Step 2: Convert to fraction form
    77,408.14/106,723.02 = 50,135.72/x
  3. Step 3: Cross multiply
    77,408.14x = 106,723.02 × 50,135.72
  4. Step 4: Simplify right side
    77,408.14x = 5,350,635,448.27
  5. Step 5: Solve for x
    x = 5,350,635,448.27/77,408.14
  6. Step 6: Final answer
    x = 69,122.39

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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.