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Finding the Fourth Proportional to 67.03, 99.98 and 56.26

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Solution

The fourth proportional to 67.03, 99.98 and 56.26 is: 83.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.03 : 99.98 = 56.26 : x
  2. Step 2: Convert to fraction form
    67.03/99.98 = 56.26/x
  3. Step 3: Cross multiply
    67.03x = 99.98 × 56.26
  4. Step 4: Simplify right side
    67.03x = 5,624.77
  5. Step 5: Solve for x
    x = 5,624.77/67.03
  6. Step 6: Final answer
    x = 83.92

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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.