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Finding the Fourth Proportional to 90,088, 124,325.28 and 50,344

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Solution

The fourth proportional to 90,088, 124,325.28 and 50,344 is: 69,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,088 : 124,325.28 = 50,344 : x
  2. Step 2: Convert to fraction form
    90,088/124,325.28 = 50,344/x
  3. Step 3: Cross multiply
    90,088x = 124,325.28 × 50,344
  4. Step 4: Simplify right side
    90,088x = 6,259,031,896.32
  5. Step 5: Solve for x
    x = 6,259,031,896.32/90,088
  6. Step 6: Final answer
    x = 69,476.87

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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.