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Finding the Fourth Proportional to 42.93, 59.24 and 25.45

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Solution

The fourth proportional to 42.93, 59.24 and 25.45 is: 35.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.93 : 59.24 = 25.45 : x
  2. Step 2: Convert to fraction form
    42.93/59.24 = 25.45/x
  3. Step 3: Cross multiply
    42.93x = 59.24 × 25.45
  4. Step 4: Simplify right side
    42.93x = 1,507.57
  5. Step 5: Solve for x
    x = 1,507.57/42.93
  6. Step 6: Final answer
    x = 35.12

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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.