Home / 75,549.24-104,258.70-42,015.48

Finding the Fourth Proportional to 75,549.24, 104,258.70 and 42,015.48

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Solution

The fourth proportional to 75,549.24, 104,258.70 and 42,015.48 is: 57,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,549.24 : 104,258.70 = 42,015.48 : x
  2. Step 2: Convert to fraction form
    75,549.24/104,258.70 = 42,015.48/x
  3. Step 3: Cross multiply
    75,549.24x = 104,258.70 × 42,015.48
  4. Step 4: Simplify right side
    75,549.24x = 4,380,479,324.68
  5. Step 5: Solve for x
    x = 4,380,479,324.68/75,549.24
  6. Step 6: Final answer
    x = 57,981.78

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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.