Home / 76,112.88-114,087.36-31,727.76

Finding the Fourth Proportional to 76,112.88, 114,087.36 and 31,727.76

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Solution

The fourth proportional to 76,112.88, 114,087.36 and 31,727.76 is: 47,557.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,112.88 : 114,087.36 = 31,727.76 : x
  2. Step 2: Convert to fraction form
    76,112.88/114,087.36 = 31,727.76/x
  3. Step 3: Cross multiply
    76,112.88x = 114,087.36 × 31,727.76
  4. Step 4: Simplify right side
    76,112.88x = 3,619,736,377.11
  5. Step 5: Solve for x
    x = 3,619,736,377.11/76,112.88
  6. Step 6: Final answer
    x = 47,557.47

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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.