Home / 84,216.15-126,340.01-28,059.66

Finding the Fourth Proportional to 84,216.15, 126,340.01 and 28,059.66

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Solution

The fourth proportional to 84,216.15, 126,340.01 and 28,059.66 is: 42,094.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,216.15 : 126,340.01 = 28,059.66 : x
  2. Step 2: Convert to fraction form
    84,216.15/126,340.01 = 28,059.66/x
  3. Step 3: Cross multiply
    84,216.15x = 126,340.01 × 28,059.66
  4. Step 4: Simplify right side
    84,216.15x = 3,545,057,725.00
  5. Step 5: Solve for x
    x = 3,545,057,725.00/84,216.15
  6. Step 6: Final answer
    x = 42,094.75

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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.