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Finding the Fourth Proportional to 84,374.88, 126,588.78 and 50,679.56

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Solution

The fourth proportional to 84,374.88, 126,588.78 and 50,679.56 is: 76,035.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,374.88 : 126,588.78 = 50,679.56 : x
  2. Step 2: Convert to fraction form
    84,374.88/126,588.78 = 50,679.56/x
  3. Step 3: Cross multiply
    84,374.88x = 126,588.78 × 50,679.56
  4. Step 4: Simplify right side
    84,374.88x = 6,415,463,038.39
  5. Step 5: Solve for x
    x = 6,415,463,038.39/84,374.88
  6. Step 6: Final answer
    x = 76,035.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.