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Finding the Fourth Proportional to 64.04, 88.29 and 42.17

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Solution

The fourth proportional to 64.04, 88.29 and 42.17 is: 58.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.04 : 88.29 = 42.17 : x
  2. Step 2: Convert to fraction form
    64.04/88.29 = 42.17/x
  3. Step 3: Cross multiply
    64.04x = 88.29 × 42.17
  4. Step 4: Simplify right side
    64.04x = 3,722.75
  5. Step 5: Solve for x
    x = 3,722.75/64.04
  6. Step 6: Final answer
    x = 58.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.