Home / 87,904.76-121,314.20-52,087.19

Finding the Fourth Proportional to 87,904.76, 121,314.20 and 52,087.19

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Solution

The fourth proportional to 87,904.76, 121,314.20 and 52,087.19 is: 71,883.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,904.76 : 121,314.20 = 52,087.19 : x
  2. Step 2: Convert to fraction form
    87,904.76/121,314.20 = 52,087.19/x
  3. Step 3: Cross multiply
    87,904.76x = 121,314.20 × 52,087.19
  4. Step 4: Simplify right side
    87,904.76x = 6,318,914,918.09
  5. Step 5: Solve for x
    x = 6,318,914,918.09/87,904.76
  6. Step 6: Final answer
    x = 71,883.65

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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.