Home / 87,566.47-120,847.85-49,840.72

Finding the Fourth Proportional to 87,566.47, 120,847.85 and 49,840.72

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Solution

The fourth proportional to 87,566.47, 120,847.85 and 49,840.72 is: 68,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,566.47 : 120,847.85 = 49,840.72 : x
  2. Step 2: Convert to fraction form
    87,566.47/120,847.85 = 49,840.72/x
  3. Step 3: Cross multiply
    87,566.47x = 120,847.85 × 49,840.72
  4. Step 4: Simplify right side
    87,566.47x = 6,023,143,490.03
  5. Step 5: Solve for x
    x = 6,023,143,490.03/87,566.47
  6. Step 6: Final answer
    x = 68,783.68

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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.