Home / 87,113.04-120,221.24-51,326.90

Finding the Fourth Proportional to 87,113.04, 120,221.24 and 51,326.90

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Solution

The fourth proportional to 87,113.04, 120,221.24 and 51,326.90 is: 70,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,113.04 : 120,221.24 = 51,326.90 : x
  2. Step 2: Convert to fraction form
    87,113.04/120,221.24 = 51,326.90/x
  3. Step 3: Cross multiply
    87,113.04x = 120,221.24 × 51,326.90
  4. Step 4: Simplify right side
    87,113.04x = 6,170,583,563.36
  5. Step 5: Solve for x
    x = 6,170,583,563.36/87,113.04
  6. Step 6: Final answer
    x = 70,834.21

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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.