Home / 87,550.77-120,820.55-49,825.02

Finding the Fourth Proportional to 87,550.77, 120,820.55 and 49,825.02

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Solution

The fourth proportional to 87,550.77, 120,820.55 and 49,825.02 is: 68,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,550.77 : 120,820.55 = 49,825.02 : x
  2. Step 2: Convert to fraction form
    87,550.77/120,820.55 = 49,825.02/x
  3. Step 3: Cross multiply
    87,550.77x = 120,820.55 × 49,825.02
  4. Step 4: Simplify right side
    87,550.77x = 6,019,886,320.16
  5. Step 5: Solve for x
    x = 6,019,886,320.16/87,550.77
  6. Step 6: Final answer
    x = 68,758.80

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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.