Home / 87,465.45-131,202.32-28,305.75

Finding the Fourth Proportional to 87,465.45, 131,202.32 and 28,305.75

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Solution

The fourth proportional to 87,465.45, 131,202.32 and 28,305.75 is: 42,459.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,465.45 : 131,202.32 = 28,305.75 : x
  2. Step 2: Convert to fraction form
    87,465.45/131,202.32 = 28,305.75/x
  3. Step 3: Cross multiply
    87,465.45x = 131,202.32 × 28,305.75
  4. Step 4: Simplify right side
    87,465.45x = 3,713,779,927.81
  5. Step 5: Solve for x
    x = 3,713,779,927.81/87,465.45
  6. Step 6: Final answer
    x = 42,459.96

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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.