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Finding the Fourth Proportional to 96.93, 145.52 and 56.39

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Solution

The fourth proportional to 96.93, 145.52 and 56.39 is: 84.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.93 : 145.52 = 56.39 : x
  2. Step 2: Convert to fraction form
    96.93/145.52 = 56.39/x
  3. Step 3: Cross multiply
    96.93x = 145.52 × 56.39
  4. Step 4: Simplify right side
    96.93x = 8,204.86
  5. Step 5: Solve for x
    x = 8,204.86/96.93
  6. Step 6: Final answer
    x = 84.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.