Home / 87,996.96-121,435.74-47,712.06

Finding the Fourth Proportional to 87,996.96, 121,435.74 and 47,712.06

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Solution

The fourth proportional to 87,996.96, 121,435.74 and 47,712.06 is: 65,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,996.96 : 121,435.74 = 47,712.06 : x
  2. Step 2: Convert to fraction form
    87,996.96/121,435.74 = 47,712.06/x
  3. Step 3: Cross multiply
    87,996.96x = 121,435.74 × 47,712.06
  4. Step 4: Simplify right side
    87,996.96x = 5,793,949,313.02
  5. Step 5: Solve for x
    x = 5,793,949,313.02/87,996.96
  6. Step 6: Final answer
    x = 65,842.61

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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.