Home / 81,107.28-121,661.21-24,947.01

Finding the Fourth Proportional to 81,107.28, 121,661.21 and 24,947.01

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Solution

The fourth proportional to 81,107.28, 121,661.21 and 24,947.01 is: 37,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,107.28 : 121,661.21 = 24,947.01 : x
  2. Step 2: Convert to fraction form
    81,107.28/121,661.21 = 24,947.01/x
  3. Step 3: Cross multiply
    81,107.28x = 121,661.21 × 24,947.01
  4. Step 4: Simplify right side
    81,107.28x = 3,035,083,422.48
  5. Step 5: Solve for x
    x = 3,035,083,422.48/81,107.28
  6. Step 6: Final answer
    x = 37,420.60

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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.