Home / 87,376.19-131,103.51-51,906.81

Finding the Fourth Proportional to 87,376.19, 131,103.51 and 51,906.81

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Solution

The fourth proportional to 87,376.19, 131,103.51 and 51,906.81 is: 77,883.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,376.19 : 131,103.51 = 51,906.81 : x
  2. Step 2: Convert to fraction form
    87,376.19/131,103.51 = 51,906.81/x
  3. Step 3: Cross multiply
    87,376.19x = 131,103.51 × 51,906.81
  4. Step 4: Simplify right side
    87,376.19x = 6,805,165,280.89
  5. Step 5: Solve for x
    x = 6,805,165,280.89/87,376.19
  6. Step 6: Final answer
    x = 77,883.52

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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.