Home / 81,727.74-112,795.65-45,920.52

Finding the Fourth Proportional to 81,727.74, 112,795.65 and 45,920.52

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Solution

The fourth proportional to 81,727.74, 112,795.65 and 45,920.52 is: 63,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,727.74 : 112,795.65 = 45,920.52 : x
  2. Step 2: Convert to fraction form
    81,727.74/112,795.65 = 45,920.52/x
  3. Step 3: Cross multiply
    81,727.74x = 112,795.65 × 45,920.52
  4. Step 4: Simplify right side
    81,727.74x = 5,179,634,901.74
  5. Step 5: Solve for x
    x = 5,179,634,901.74/81,727.74
  6. Step 6: Final answer
    x = 63,376.71

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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.