Home / 81,108.72-121,685.04-24,947.64

Finding the Fourth Proportional to 81,108.72, 121,685.04 and 24,947.64

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Solution

The fourth proportional to 81,108.72, 121,685.04 and 24,947.64 is: 37,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,108.72 : 121,685.04 = 24,947.64 : x
  2. Step 2: Convert to fraction form
    81,108.72/121,685.04 = 24,947.64/x
  3. Step 3: Cross multiply
    81,108.72x = 121,685.04 × 24,947.64
  4. Step 4: Simplify right side
    81,108.72x = 3,035,754,571.31
  5. Step 5: Solve for x
    x = 3,035,754,571.31/81,108.72
  6. Step 6: Final answer
    x = 37,428.21

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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.