Home / 88,174.54-121,688.38-49,940.77

Finding the Fourth Proportional to 88,174.54, 121,688.38 and 49,940.77

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Solution

The fourth proportional to 88,174.54, 121,688.38 and 49,940.77 is: 68,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,174.54 : 121,688.38 = 49,940.77 : x
  2. Step 2: Convert to fraction form
    88,174.54/121,688.38 = 49,940.77/x
  3. Step 3: Cross multiply
    88,174.54x = 121,688.38 × 49,940.77
  4. Step 4: Simplify right side
    88,174.54x = 6,077,211,102.71
  5. Step 5: Solve for x
    x = 6,077,211,102.71/88,174.54
  6. Step 6: Final answer
    x = 68,922.51

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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.