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Finding the Fourth Proportional to 87,336.70, 131,005.05 and 25,007.20

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Solution

The fourth proportional to 87,336.70, 131,005.05 and 25,007.20 is: 37,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,336.70 : 131,005.05 = 25,007.20 : x
  2. Step 2: Convert to fraction form
    87,336.70/131,005.05 = 25,007.20/x
  3. Step 3: Cross multiply
    87,336.70x = 131,005.05 × 25,007.20
  4. Step 4: Simplify right side
    87,336.70x = 3,276,069,486.36
  5. Step 5: Solve for x
    x = 3,276,069,486.36/87,336.70
  6. Step 6: Final answer
    x = 37,510.80

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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.