Home / 90,321.78-124,642.76-50,035.48

Finding the Fourth Proportional to 90,321.78, 124,642.76 and 50,035.48

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Solution

The fourth proportional to 90,321.78, 124,642.76 and 50,035.48 is: 69,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,321.78 : 124,642.76 = 50,035.48 : x
  2. Step 2: Convert to fraction form
    90,321.78/124,642.76 = 50,035.48/x
  3. Step 3: Cross multiply
    90,321.78x = 124,642.76 × 50,035.48
  4. Step 4: Simplify right side
    90,321.78x = 6,236,560,325.12
  5. Step 5: Solve for x
    x = 6,236,560,325.12/90,321.78
  6. Step 6: Final answer
    x = 69,048.24

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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.