Home / 90,324.36-124,651.98-54,513.72

Finding the Fourth Proportional to 90,324.36, 124,651.98 and 54,513.72

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Solution

The fourth proportional to 90,324.36, 124,651.98 and 54,513.72 is: 75,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,324.36 : 124,651.98 = 54,513.72 : x
  2. Step 2: Convert to fraction form
    90,324.36/124,651.98 = 54,513.72/x
  3. Step 3: Cross multiply
    90,324.36x = 124,651.98 × 54,513.72
  4. Step 4: Simplify right side
    90,324.36x = 6,795,243,135.17
  5. Step 5: Solve for x
    x = 6,795,243,135.17/90,324.36
  6. Step 6: Final answer
    x = 75,231.57

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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.