Home / 39,979.56-55,245.06-34,657.32

Finding the Fourth Proportional to 39,979.56, 55,245.06 and 34,657.32

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Solution

The fourth proportional to 39,979.56, 55,245.06 and 34,657.32 is: 47,890.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.56 : 55,245.06 = 34,657.32 : x
  2. Step 2: Convert to fraction form
    39,979.56/55,245.06 = 34,657.32/x
  3. Step 3: Cross multiply
    39,979.56x = 55,245.06 × 34,657.32
  4. Step 4: Simplify right side
    39,979.56x = 1,914,645,722.84
  5. Step 5: Solve for x
    x = 1,914,645,722.84/39,979.56
  6. Step 6: Final answer
    x = 47,890.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.