Home / 81,737.94-112,786.12-45,921.02

Finding the Fourth Proportional to 81,737.94, 112,786.12 and 45,921.02

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Solution

The fourth proportional to 81,737.94, 112,786.12 and 45,921.02 is: 63,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,737.94 : 112,786.12 = 45,921.02 : x
  2. Step 2: Convert to fraction form
    81,737.94/112,786.12 = 45,921.02/x
  3. Step 3: Cross multiply
    81,737.94x = 112,786.12 × 45,921.02
  4. Step 4: Simplify right side
    81,737.94x = 5,179,253,672.24
  5. Step 5: Solve for x
    x = 5,179,253,672.24/81,737.94
  6. Step 6: Final answer
    x = 63,364.13

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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.