Home / 87,594.32-131,391.44-28,430

Finding the Fourth Proportional to 87,594.32, 131,391.44 and 28,430

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Solution

The fourth proportional to 87,594.32, 131,391.44 and 28,430 is: 42,644.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,594.32 : 131,391.44 = 28,430 : x
  2. Step 2: Convert to fraction form
    87,594.32/131,391.44 = 28,430/x
  3. Step 3: Cross multiply
    87,594.32x = 131,391.44 × 28,430
  4. Step 4: Simplify right side
    87,594.32x = 3,735,458,639.20
  5. Step 5: Solve for x
    x = 3,735,458,639.20/87,594.32
  6. Step 6: Final answer
    x = 42,644.99

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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.