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Finding the Fourth Proportional to 58.08, 80.10 and 53.52

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Solution

The fourth proportional to 58.08, 80.10 and 53.52 is: 73.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.08 : 80.10 = 53.52 : x
  2. Step 2: Convert to fraction form
    58.08/80.10 = 53.52/x
  3. Step 3: Cross multiply
    58.08x = 80.10 × 53.52
  4. Step 4: Simplify right side
    58.08x = 4,286.95
  5. Step 5: Solve for x
    x = 4,286.95/58.08
  6. Step 6: Final answer
    x = 73.81

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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.