Home / 78,833.23-118,179.51-28,901.67

Finding the Fourth Proportional to 78,833.23, 118,179.51 and 28,901.67

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Solution

The fourth proportional to 78,833.23, 118,179.51 and 28,901.67 is: 43,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.23 : 118,179.51 = 28,901.67 : x
  2. Step 2: Convert to fraction form
    78,833.23/118,179.51 = 28,901.67/x
  3. Step 3: Cross multiply
    78,833.23x = 118,179.51 × 28,901.67
  4. Step 4: Simplify right side
    78,833.23x = 3,415,585,198.78
  5. Step 5: Solve for x
    x = 3,415,585,198.78/78,833.23
  6. Step 6: Final answer
    x = 43,326.72

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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.