Home / 84,312.07-126,481.83-39,378.36

Finding the Fourth Proportional to 84,312.07, 126,481.83 and 39,378.36

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Solution

The fourth proportional to 84,312.07, 126,481.83 and 39,378.36 is: 59,073.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,312.07 : 126,481.83 = 39,378.36 : x
  2. Step 2: Convert to fraction form
    84,312.07/126,481.83 = 39,378.36/x
  3. Step 3: Cross multiply
    84,312.07x = 126,481.83 × 39,378.36
  4. Step 4: Simplify right side
    84,312.07x = 4,980,647,035.20
  5. Step 5: Solve for x
    x = 4,980,647,035.20/84,312.07
  6. Step 6: Final answer
    x = 59,073.95

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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.