Home / 75,123.41-103,667.10-41,131.28

Finding the Fourth Proportional to 75,123.41, 103,667.10 and 41,131.28

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Solution

The fourth proportional to 75,123.41, 103,667.10 and 41,131.28 is: 56,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,123.41 : 103,667.10 = 41,131.28 : x
  2. Step 2: Convert to fraction form
    75,123.41/103,667.10 = 41,131.28/x
  3. Step 3: Cross multiply
    75,123.41x = 103,667.10 × 41,131.28
  4. Step 4: Simplify right side
    75,123.41x = 4,263,960,765.24
  5. Step 5: Solve for x
    x = 4,263,960,765.24/75,123.41
  6. Step 6: Final answer
    x = 56,759.41

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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.