Home / 87,995.22-121,440.42-49,762.81

Finding the Fourth Proportional to 87,995.22, 121,440.42 and 49,762.81

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Solution

The fourth proportional to 87,995.22, 121,440.42 and 49,762.81 is: 68,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.22 : 121,440.42 = 49,762.81 : x
  2. Step 2: Convert to fraction form
    87,995.22/121,440.42 = 49,762.81/x
  3. Step 3: Cross multiply
    87,995.22x = 121,440.42 × 49,762.81
  4. Step 4: Simplify right side
    87,995.22x = 6,043,216,698.58
  5. Step 5: Solve for x
    x = 6,043,216,698.58/87,995.22
  6. Step 6: Final answer
    x = 68,676.65

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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.