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Finding the Fourth Proportional to 90,536.69, 124,939.71 and 50,250.80

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Solution

The fourth proportional to 90,536.69, 124,939.71 and 50,250.80 is: 69,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,536.69 : 124,939.71 = 50,250.80 : x
  2. Step 2: Convert to fraction form
    90,536.69/124,939.71 = 50,250.80/x
  3. Step 3: Cross multiply
    90,536.69x = 124,939.71 × 50,250.80
  4. Step 4: Simplify right side
    90,536.69x = 6,278,319,503.32
  5. Step 5: Solve for x
    x = 6,278,319,503.32/90,536.69
  6. Step 6: Final answer
    x = 69,345.59

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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.