Home / 90,786.74-125,283.87-50,499.63

Finding the Fourth Proportional to 90,786.74, 125,283.87 and 50,499.63

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Solution

The fourth proportional to 90,786.74, 125,283.87 and 50,499.63 is: 69,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,786.74 : 125,283.87 = 50,499.63 : x
  2. Step 2: Convert to fraction form
    90,786.74/125,283.87 = 50,499.63/x
  3. Step 3: Cross multiply
    90,786.74x = 125,283.87 × 50,499.63
  4. Step 4: Simplify right side
    90,786.74x = 6,326,789,079.97
  5. Step 5: Solve for x
    x = 6,326,789,079.97/90,786.74
  6. Step 6: Final answer
    x = 69,688.47

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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.