Home / 81,107.78-121,661.96-24,947.51

Finding the Fourth Proportional to 81,107.78, 121,661.96 and 24,947.51

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Solution

The fourth proportional to 81,107.78, 121,661.96 and 24,947.51 is: 37,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,107.78 : 121,661.96 = 24,947.51 : x
  2. Step 2: Convert to fraction form
    81,107.78/121,661.96 = 24,947.51/x
  3. Step 3: Cross multiply
    81,107.78x = 121,661.96 × 24,947.51
  4. Step 4: Simplify right side
    81,107.78x = 3,035,163,236.69
  5. Step 5: Solve for x
    x = 3,035,163,236.69/81,107.78
  6. Step 6: Final answer
    x = 37,421.36

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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.