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Finding the Fourth Proportional to 84,482.67, 126,745.20 and 25,318.20

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Solution

The fourth proportional to 84,482.67, 126,745.20 and 25,318.20 is: 37,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,482.67 : 126,745.20 = 25,318.20 : x
  2. Step 2: Convert to fraction form
    84,482.67/126,745.20 = 25,318.20/x
  3. Step 3: Cross multiply
    84,482.67x = 126,745.20 × 25,318.20
  4. Step 4: Simplify right side
    84,482.67x = 3,208,960,322.64
  5. Step 5: Solve for x
    x = 3,208,960,322.64/84,482.67
  6. Step 6: Final answer
    x = 37,983.65

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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.