Home / 87,000.15-120,054.52-51,183.24

Finding the Fourth Proportional to 87,000.15, 120,054.52 and 51,183.24

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Solution

The fourth proportional to 87,000.15, 120,054.52 and 51,183.24 is: 70,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000.15 : 120,054.52 = 51,183.24 : x
  2. Step 2: Convert to fraction form
    87,000.15/120,054.52 = 51,183.24/x
  3. Step 3: Cross multiply
    87,000.15x = 120,054.52 × 51,183.24
  4. Step 4: Simplify right side
    87,000.15x = 6,144,778,924.02
  5. Step 5: Solve for x
    x = 6,144,778,924.02/87,000.15
  6. Step 6: Final answer
    x = 70,629.52

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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.