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Finding the Fourth Proportional to 52.84, 73.26 and 51.15

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Solution

The fourth proportional to 52.84, 73.26 and 51.15 is: 70.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.84 : 73.26 = 51.15 : x
  2. Step 2: Convert to fraction form
    52.84/73.26 = 51.15/x
  3. Step 3: Cross multiply
    52.84x = 73.26 × 51.15
  4. Step 4: Simplify right side
    52.84x = 3,746.99
  5. Step 5: Solve for x
    x = 3,746.99/52.84
  6. Step 6: Final answer
    x = 70.92

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.