Home / 90,925.87-125,481.59-50,639.63

Finding the Fourth Proportional to 90,925.87, 125,481.59 and 50,639.63

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Solution

The fourth proportional to 90,925.87, 125,481.59 and 50,639.63 is: 69,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,925.87 : 125,481.59 = 50,639.63 : x
  2. Step 2: Convert to fraction form
    90,925.87/125,481.59 = 50,639.63/x
  3. Step 3: Cross multiply
    90,925.87x = 125,481.59 × 50,639.63
  4. Step 4: Simplify right side
    90,925.87x = 6,354,340,598.70
  5. Step 5: Solve for x
    x = 6,354,340,598.70/90,925.87
  6. Step 6: Final answer
    x = 69,884.85

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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.