Home / 87,980.16-121,414.14-50,254.68

Finding the Fourth Proportional to 87,980.16, 121,414.14 and 50,254.68

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Solution

The fourth proportional to 87,980.16, 121,414.14 and 50,254.68 is: 69,352.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,980.16 : 121,414.14 = 50,254.68 : x
  2. Step 2: Convert to fraction form
    87,980.16/121,414.14 = 50,254.68/x
  3. Step 3: Cross multiply
    87,980.16x = 121,414.14 × 50,254.68
  4. Step 4: Simplify right side
    87,980.16x = 6,101,628,753.18
  5. Step 5: Solve for x
    x = 6,101,628,753.18/87,980.16
  6. Step 6: Final answer
    x = 69,352.33

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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.