Home / 87,029.31-120,091.42-51,217.19

Finding the Fourth Proportional to 87,029.31, 120,091.42 and 51,217.19

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Solution

The fourth proportional to 87,029.31, 120,091.42 and 51,217.19 is: 70,674.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,029.31 : 120,091.42 = 51,217.19 : x
  2. Step 2: Convert to fraction form
    87,029.31/120,091.42 = 51,217.19/x
  3. Step 3: Cross multiply
    87,029.31x = 120,091.42 × 51,217.19
  4. Step 4: Simplify right side
    87,029.31x = 6,150,745,075.51
  5. Step 5: Solve for x
    x = 6,150,745,075.51/87,029.31
  6. Step 6: Final answer
    x = 70,674.41

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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.