Home / 88,083.76-121,555.64-50,358.80

Finding the Fourth Proportional to 88,083.76, 121,555.64 and 50,358.80

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Solution

The fourth proportional to 88,083.76, 121,555.64 and 50,358.80 is: 69,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,083.76 : 121,555.64 = 50,358.80 : x
  2. Step 2: Convert to fraction form
    88,083.76/121,555.64 = 50,358.80/x
  3. Step 3: Cross multiply
    88,083.76x = 121,555.64 × 50,358.80
  4. Step 4: Simplify right side
    88,083.76x = 6,121,396,163.63
  5. Step 5: Solve for x
    x = 6,121,396,163.63/88,083.76
  6. Step 6: Final answer
    x = 69,495.17

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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.