Home / 87,783.66-131,402.52-47,702.52

Finding the Fourth Proportional to 87,783.66, 131,402.52 and 47,702.52

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Solution

The fourth proportional to 87,783.66, 131,402.52 and 47,702.52 is: 71,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,783.66 : 131,402.52 = 47,702.52 : x
  2. Step 2: Convert to fraction form
    87,783.66/131,402.52 = 47,702.52/x
  3. Step 3: Cross multiply
    87,783.66x = 131,402.52 × 47,702.52
  4. Step 4: Simplify right side
    87,783.66x = 6,268,231,338.35
  5. Step 5: Solve for x
    x = 6,268,231,338.35/87,783.66
  6. Step 6: Final answer
    x = 71,405.45

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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.