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Finding the Fourth Proportional to 90,274.86, 124,578.99 and 50,530.86

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Solution

The fourth proportional to 90,274.86, 124,578.99 and 50,530.86 is: 69,732.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,274.86 : 124,578.99 = 50,530.86 : x
  2. Step 2: Convert to fraction form
    90,274.86/124,578.99 = 50,530.86/x
  3. Step 3: Cross multiply
    90,274.86x = 124,578.99 × 50,530.86
  4. Step 4: Simplify right side
    90,274.86x = 6,295,083,502.63
  5. Step 5: Solve for x
    x = 6,295,083,502.63/90,274.86
  6. Step 6: Final answer
    x = 69,732.41

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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.