Home / 88,338.25-121,908-50,612.50

Finding the Fourth Proportional to 88,338.25, 121,908 and 50,612.50

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Solution

The fourth proportional to 88,338.25, 121,908 and 50,612.50 is: 69,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,338.25 : 121,908 = 50,612.50 : x
  2. Step 2: Convert to fraction form
    88,338.25/121,908 = 50,612.50/x
  3. Step 3: Cross multiply
    88,338.25x = 121,908 × 50,612.50
  4. Step 4: Simplify right side
    88,338.25x = 6,170,068,650
  5. Step 5: Solve for x
    x = 6,170,068,650/88,338.25
  6. Step 6: Final answer
    x = 69,845.95

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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.