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Finding the Fourth Proportional to 58.63, 80.87 and 35.30

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Solution

The fourth proportional to 58.63, 80.87 and 35.30 is: 48.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.63 : 80.87 = 35.30 : x
  2. Step 2: Convert to fraction form
    58.63/80.87 = 35.30/x
  3. Step 3: Cross multiply
    58.63x = 80.87 × 35.30
  4. Step 4: Simplify right side
    58.63x = 2,854.71
  5. Step 5: Solve for x
    x = 2,854.71/58.63
  6. Step 6: Final answer
    x = 48.69

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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.