Home / 83,868.39-125,860.86-54,212.67

Finding the Fourth Proportional to 83,868.39, 125,860.86 and 54,212.67

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Solution

The fourth proportional to 83,868.39, 125,860.86 and 54,212.67 is: 81,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,868.39 : 125,860.86 = 54,212.67 : x
  2. Step 2: Convert to fraction form
    83,868.39/125,860.86 = 54,212.67/x
  3. Step 3: Cross multiply
    83,868.39x = 125,860.86 × 54,212.67
  4. Step 4: Simplify right side
    83,868.39x = 6,823,253,269.10
  5. Step 5: Solve for x
    x = 6,823,253,269.10/83,868.39
  6. Step 6: Final answer
    x = 81,356.67

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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.