Home / 87,578.54-131,386.25-28,409.59

Finding the Fourth Proportional to 87,578.54, 131,386.25 and 28,409.59

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Solution

The fourth proportional to 87,578.54, 131,386.25 and 28,409.59 is: 42,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,578.54 : 131,386.25 = 28,409.59 : x
  2. Step 2: Convert to fraction form
    87,578.54/131,386.25 = 28,409.59/x
  3. Step 3: Cross multiply
    87,578.54x = 131,386.25 × 28,409.59
  4. Step 4: Simplify right side
    87,578.54x = 3,732,628,908.23
  5. Step 5: Solve for x
    x = 3,732,628,908.23/87,578.54
  6. Step 6: Final answer
    x = 42,620.36

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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.