Home / 72,667.33-108,999.91-20,075.65

Finding the Fourth Proportional to 72,667.33, 108,999.91 and 20,075.65

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Solution

The fourth proportional to 72,667.33, 108,999.91 and 20,075.65 is: 30,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,667.33 : 108,999.91 = 20,075.65 : x
  2. Step 2: Convert to fraction form
    72,667.33/108,999.91 = 20,075.65/x
  3. Step 3: Cross multiply
    72,667.33x = 108,999.91 × 20,075.65
  4. Step 4: Simplify right side
    72,667.33x = 2,188,244,043.19
  5. Step 5: Solve for x
    x = 2,188,244,043.19/72,667.33
  6. Step 6: Final answer
    x = 30,113.18

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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.