Home / 87,628.07-131,442.10-21,068.19

Finding the Fourth Proportional to 87,628.07, 131,442.10 and 21,068.19

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Solution

The fourth proportional to 87,628.07, 131,442.10 and 21,068.19 is: 31,602.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,628.07 : 131,442.10 = 21,068.19 : x
  2. Step 2: Convert to fraction form
    87,628.07/131,442.10 = 21,068.19/x
  3. Step 3: Cross multiply
    87,628.07x = 131,442.10 × 21,068.19
  4. Step 4: Simplify right side
    87,628.07x = 2,769,247,745.88
  5. Step 5: Solve for x
    x = 2,769,247,745.88/87,628.07
  6. Step 6: Final answer
    x = 31,602.29

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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.