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Finding the Fourth Proportional to 47.31, 70.56 and 44.93

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Solution

The fourth proportional to 47.31, 70.56 and 44.93 is: 67.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.31 : 70.56 = 44.93 : x
  2. Step 2: Convert to fraction form
    47.31/70.56 = 44.93/x
  3. Step 3: Cross multiply
    47.31x = 70.56 × 44.93
  4. Step 4: Simplify right side
    47.31x = 3,169.74
  5. Step 5: Solve for x
    x = 3,169.74/47.31
  6. Step 6: Final answer
    x = 67.00

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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.