Home / 90,764.52-125,247.78-50,478.36

Finding the Fourth Proportional to 90,764.52, 125,247.78 and 50,478.36

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Solution

The fourth proportional to 90,764.52, 125,247.78 and 50,478.36 is: 69,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,764.52 : 125,247.78 = 50,478.36 : x
  2. Step 2: Convert to fraction form
    90,764.52/125,247.78 = 50,478.36/x
  3. Step 3: Cross multiply
    90,764.52x = 125,247.78 × 50,478.36
  4. Step 4: Simplify right side
    90,764.52x = 6,322,302,528.04
  5. Step 5: Solve for x
    x = 6,322,302,528.04/90,764.52
  6. Step 6: Final answer
    x = 69,656.10

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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.