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Finding the Fourth Proportional to 58.17, 80.03 and 50.36

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Solution

The fourth proportional to 58.17, 80.03 and 50.36 is: 69.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.17 : 80.03 = 50.36 : x
  2. Step 2: Convert to fraction form
    58.17/80.03 = 50.36/x
  3. Step 3: Cross multiply
    58.17x = 80.03 × 50.36
  4. Step 4: Simplify right side
    58.17x = 4,030.02
  5. Step 5: Solve for x
    x = 4,030.02/58.17
  6. Step 6: Final answer
    x = 69.28

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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.