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Finding the Fourth Proportional to 62.36, 85.50 and 56.19

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Solution

The fourth proportional to 62.36, 85.50 and 56.19 is: 77.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.36 : 85.50 = 56.19 : x
  2. Step 2: Convert to fraction form
    62.36/85.50 = 56.19/x
  3. Step 3: Cross multiply
    62.36x = 85.50 × 56.19
  4. Step 4: Simplify right side
    62.36x = 4,804.25
  5. Step 5: Solve for x
    x = 4,804.25/62.36
  6. Step 6: Final answer
    x = 77.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.