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Finding the Fourth Proportional to 90,039, 124,253.82 and 50,295

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Solution

The fourth proportional to 90,039, 124,253.82 and 50,295 is: 69,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,039 : 124,253.82 = 50,295 : x
  2. Step 2: Convert to fraction form
    90,039/124,253.82 = 50,295/x
  3. Step 3: Cross multiply
    90,039x = 124,253.82 × 50,295
  4. Step 4: Simplify right side
    90,039x = 6,249,345,876.90
  5. Step 5: Solve for x
    x = 6,249,345,876.90/90,039
  6. Step 6: Final answer
    x = 69,407.10

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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.