Home / 72,270.20-108,421.23-21,667.21

Finding the Fourth Proportional to 72,270.20, 108,421.23 and 21,667.21

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Solution

The fourth proportional to 72,270.20, 108,421.23 and 21,667.21 is: 32,505.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,270.20 : 108,421.23 = 21,667.21 : x
  2. Step 2: Convert to fraction form
    72,270.20/108,421.23 = 21,667.21/x
  3. Step 3: Cross multiply
    72,270.20x = 108,421.23 × 21,667.21
  4. Step 4: Simplify right side
    72,270.20x = 2,349,185,558.87
  5. Step 5: Solve for x
    x = 2,349,185,558.87/72,270.20
  6. Step 6: Final answer
    x = 32,505.59

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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.