Home / 84,310.32-126,479.21-39,376.61

Finding the Fourth Proportional to 84,310.32, 126,479.21 and 39,376.61

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Solution

The fourth proportional to 84,310.32, 126,479.21 and 39,376.61 is: 59,071.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,310.32 : 126,479.21 = 39,376.61 : x
  2. Step 2: Convert to fraction form
    84,310.32/126,479.21 = 39,376.61/x
  3. Step 3: Cross multiply
    84,310.32x = 126,479.21 × 39,376.61
  4. Step 4: Simplify right side
    84,310.32x = 4,980,321,696.00
  5. Step 5: Solve for x
    x = 4,980,321,696.00/84,310.32
  6. Step 6: Final answer
    x = 59,071.32

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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.