Home / 87,938.32-131,915.64-31,792.48

Finding the Fourth Proportional to 87,938.32, 131,915.64 and 31,792.48

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Solution

The fourth proportional to 87,938.32, 131,915.64 and 31,792.48 is: 47,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,938.32 : 131,915.64 = 31,792.48 : x
  2. Step 2: Convert to fraction form
    87,938.32/131,915.64 = 31,792.48/x
  3. Step 3: Cross multiply
    87,938.32x = 131,915.64 × 31,792.48
  4. Step 4: Simplify right side
    87,938.32x = 4,193,925,346.39
  5. Step 5: Solve for x
    x = 4,193,925,346.39/87,938.32
  6. Step 6: Final answer
    x = 47,691.67

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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.