Home / 87,565.91-120,847.10-49,840.16

Finding the Fourth Proportional to 87,565.91, 120,847.10 and 49,840.16

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Solution

The fourth proportional to 87,565.91, 120,847.10 and 49,840.16 is: 68,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,565.91 : 120,847.10 = 49,840.16 : x
  2. Step 2: Convert to fraction form
    87,565.91/120,847.10 = 49,840.16/x
  3. Step 3: Cross multiply
    87,565.91x = 120,847.10 × 49,840.16
  4. Step 4: Simplify right side
    87,565.91x = 6,023,037,946.10
  5. Step 5: Solve for x
    x = 6,023,037,946.10/87,565.91
  6. Step 6: Final answer
    x = 68,782.91

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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.