Home / 87,420.54-120,655.83-51,608.22

Finding the Fourth Proportional to 87,420.54, 120,655.83 and 51,608.22

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Solution

The fourth proportional to 87,420.54, 120,655.83 and 51,608.22 is: 71,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,420.54 : 120,655.83 = 51,608.22 : x
  2. Step 2: Convert to fraction form
    87,420.54/120,655.83 = 51,608.22/x
  3. Step 3: Cross multiply
    87,420.54x = 120,655.83 × 51,608.22
  4. Step 4: Simplify right side
    87,420.54x = 6,226,832,618.92
  5. Step 5: Solve for x
    x = 6,226,832,618.92/87,420.54
  6. Step 6: Final answer
    x = 71,228.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.