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Finding the Fourth Proportional to 90,488.47, 124,874.84 and 50,204.87

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Solution

The fourth proportional to 90,488.47, 124,874.84 and 50,204.87 is: 69,283.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,488.47 : 124,874.84 = 50,204.87 : x
  2. Step 2: Convert to fraction form
    90,488.47/124,874.84 = 50,204.87/x
  3. Step 3: Cross multiply
    90,488.47x = 124,874.84 × 50,204.87
  4. Step 4: Simplify right side
    90,488.47x = 6,269,324,857.45
  5. Step 5: Solve for x
    x = 6,269,324,857.45/90,488.47
  6. Step 6: Final answer
    x = 69,283.14

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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.