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Finding the Fourth Proportional to 70,005.80, 96,607.72 and 38,174.72

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Solution

The fourth proportional to 70,005.80, 96,607.72 and 38,174.72 is: 52,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,005.80 : 96,607.72 = 38,174.72 : x
  2. Step 2: Convert to fraction form
    70,005.80/96,607.72 = 38,174.72/x
  3. Step 3: Cross multiply
    70,005.80x = 96,607.72 × 38,174.72
  4. Step 4: Simplify right side
    70,005.80x = 3,687,972,660.84
  5. Step 5: Solve for x
    x = 3,687,972,660.84/70,005.80
  6. Step 6: Final answer
    x = 52,680.96

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1.5x scale

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.