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Finding the Fourth Proportional to 75,357.37, 104,003.99 and 45,143.97

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Solution

The fourth proportional to 75,357.37, 104,003.99 and 45,143.97 is: 62,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,357.37 : 104,003.99 = 45,143.97 : x
  2. Step 2: Convert to fraction form
    75,357.37/104,003.99 = 45,143.97/x
  3. Step 3: Cross multiply
    75,357.37x = 104,003.99 × 45,143.97
  4. Step 4: Simplify right side
    75,357.37x = 4,695,152,258.70
  5. Step 5: Solve for x
    x = 4,695,152,258.70/75,357.37
  6. Step 6: Final answer
    x = 62,305.15

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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.