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Finding the Fourth Proportional to 46.18, 63.58 and 45.16

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Solution

The fourth proportional to 46.18, 63.58 and 45.16 is: 62.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.18 : 63.58 = 45.16 : x
  2. Step 2: Convert to fraction form
    46.18/63.58 = 45.16/x
  3. Step 3: Cross multiply
    46.18x = 63.58 × 45.16
  4. Step 4: Simplify right side
    46.18x = 2,871.43
  5. Step 5: Solve for x
    x = 2,871.43/46.18
  6. Step 6: Final answer
    x = 62.19

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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.