Home / 87,006.15-120,062.81-51,189.24

Finding the Fourth Proportional to 87,006.15, 120,062.81 and 51,189.24

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Solution

The fourth proportional to 87,006.15, 120,062.81 and 51,189.24 is: 70,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,006.15 : 120,062.81 = 51,189.24 : x
  2. Step 2: Convert to fraction form
    87,006.15/120,062.81 = 51,189.24/x
  3. Step 3: Cross multiply
    87,006.15x = 120,062.81 × 51,189.24
  4. Step 4: Simplify right side
    87,006.15x = 6,145,923,740.22
  5. Step 5: Solve for x
    x = 6,145,923,740.22/87,006.15
  6. Step 6: Final answer
    x = 70,637.81

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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.