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Finding the Fourth Proportional to 90,254, 124,550.52 and 50,510

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Solution

The fourth proportional to 90,254, 124,550.52 and 50,510 is: 69,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,254 : 124,550.52 = 50,510 : x
  2. Step 2: Convert to fraction form
    90,254/124,550.52 = 50,510/x
  3. Step 3: Cross multiply
    90,254x = 124,550.52 × 50,510
  4. Step 4: Simplify right side
    90,254x = 6,291,046,765.20
  5. Step 5: Solve for x
    x = 6,291,046,765.20/90,254
  6. Step 6: Final answer
    x = 69,703.80

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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.