Home / 74,271.55-111,399.42-20,962.21

Finding the Fourth Proportional to 74,271.55, 111,399.42 and 20,962.21

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Solution

The fourth proportional to 74,271.55, 111,399.42 and 20,962.21 is: 31,441.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271.55 : 111,399.42 = 20,962.21 : x
  2. Step 2: Convert to fraction form
    74,271.55/111,399.42 = 20,962.21/x
  3. Step 3: Cross multiply
    74,271.55x = 111,399.42 × 20,962.21
  4. Step 4: Simplify right side
    74,271.55x = 2,335,177,809.83
  5. Step 5: Solve for x
    x = 2,335,177,809.83/74,271.55
  6. Step 6: Final answer
    x = 31,441.08

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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.