Home / 87,455.09-131,186.73-28,295.39

Finding the Fourth Proportional to 87,455.09, 131,186.73 and 28,295.39

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Solution

The fourth proportional to 87,455.09, 131,186.73 and 28,295.39 is: 42,444.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,455.09 : 131,186.73 = 28,295.39 : x
  2. Step 2: Convert to fraction form
    87,455.09/131,186.73 = 28,295.39/x
  3. Step 3: Cross multiply
    87,455.09x = 131,186.73 × 28,295.39
  4. Step 4: Simplify right side
    87,455.09x = 3,711,979,360.21
  5. Step 5: Solve for x
    x = 3,711,979,360.21/87,455.09
  6. Step 6: Final answer
    x = 42,444.41

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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.