Home / 52,009.25-78,016.10-20,426.16

Finding the Fourth Proportional to 52,009.25, 78,016.10 and 20,426.16

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Solution

The fourth proportional to 52,009.25, 78,016.10 and 20,426.16 is: 30,640.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,009.25 : 78,016.10 = 20,426.16 : x
  2. Step 2: Convert to fraction form
    52,009.25/78,016.10 = 20,426.16/x
  3. Step 3: Cross multiply
    52,009.25x = 78,016.10 × 20,426.16
  4. Step 4: Simplify right side
    52,009.25x = 1,593,568,882.65
  5. Step 5: Solve for x
    x = 1,593,568,882.65/52,009.25
  6. Step 6: Final answer
    x = 30,640.11

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1.5x scale

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.