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Finding the Fourth Proportional to 55.95, 83.57 and 52.53

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Solution

The fourth proportional to 55.95, 83.57 and 52.53 is: 78.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.95 : 83.57 = 52.53 : x
  2. Step 2: Convert to fraction form
    55.95/83.57 = 52.53/x
  3. Step 3: Cross multiply
    55.95x = 83.57 × 52.53
  4. Step 4: Simplify right side
    55.95x = 4,389.67
  5. Step 5: Solve for x
    x = 4,389.67/55.95
  6. Step 6: Final answer
    x = 78.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.