Home / 87,859.08-131,662.41-49,938.47

Finding the Fourth Proportional to 87,859.08, 131,662.41 and 49,938.47

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Solution

The fourth proportional to 87,859.08, 131,662.41 and 49,938.47 is: 74,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,859.08 : 131,662.41 = 49,938.47 : x
  2. Step 2: Convert to fraction form
    87,859.08/131,662.41 = 49,938.47/x
  3. Step 3: Cross multiply
    87,859.08x = 131,662.41 × 49,938.47
  4. Step 4: Simplify right side
    87,859.08x = 6,575,019,981.57
  5. Step 5: Solve for x
    x = 6,575,019,981.57/87,859.08
  6. Step 6: Final answer
    x = 74,835.98

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1.5x scale

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.