Home / 90,730.78-125,198.97-50,438.05

Finding the Fourth Proportional to 90,730.78, 125,198.97 and 50,438.05

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Solution

The fourth proportional to 90,730.78, 125,198.97 and 50,438.05 is: 69,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,730.78 : 125,198.97 = 50,438.05 : x
  2. Step 2: Convert to fraction form
    90,730.78/125,198.97 = 50,438.05/x
  3. Step 3: Cross multiply
    90,730.78x = 125,198.97 × 50,438.05
  4. Step 4: Simplify right side
    90,730.78x = 6,314,791,908.81
  5. Step 5: Solve for x
    x = 6,314,791,908.81/90,730.78
  6. Step 6: Final answer
    x = 69,599.22

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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.