Home / 87,347.22-120,543.43-49,118.80

Finding the Fourth Proportional to 87,347.22, 120,543.43 and 49,118.80

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Solution

The fourth proportional to 87,347.22, 120,543.43 and 49,118.80 is: 67,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,347.22 : 120,543.43 = 49,118.80 : x
  2. Step 2: Convert to fraction form
    87,347.22/120,543.43 = 49,118.80/x
  3. Step 3: Cross multiply
    87,347.22x = 120,543.43 × 49,118.80
  4. Step 4: Simplify right side
    87,347.22x = 5,920,948,026.77
  5. Step 5: Solve for x
    x = 5,920,948,026.77/87,347.22
  6. Step 6: Final answer
    x = 67,786.34

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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.