Home / 87,596.64-131,362.56-31,420.80

Finding the Fourth Proportional to 87,596.64, 131,362.56 and 31,420.80

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Solution

The fourth proportional to 87,596.64, 131,362.56 and 31,420.80 is: 47,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,596.64 : 131,362.56 = 31,420.80 : x
  2. Step 2: Convert to fraction form
    87,596.64/131,362.56 = 31,420.80/x
  3. Step 3: Cross multiply
    87,596.64x = 131,362.56 × 31,420.80
  4. Step 4: Simplify right side
    87,596.64x = 4,127,516,725.25
  5. Step 5: Solve for x
    x = 4,127,516,725.25/87,596.64
  6. Step 6: Final answer
    x = 47,119.58

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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.