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Finding the Fourth Proportional to 63,015, 86,957.90 and 34,334.76

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Solution

The fourth proportional to 63,015, 86,957.90 and 34,334.76 is: 47,380.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,015 : 86,957.90 = 34,334.76 : x
  2. Step 2: Convert to fraction form
    63,015/86,957.90 = 34,334.76/x
  3. Step 3: Cross multiply
    63,015x = 86,957.90 × 34,334.76
  4. Step 4: Simplify right side
    63,015x = 2,985,678,626.60
  5. Step 5: Solve for x
    x = 2,985,678,626.60/63,015
  6. Step 6: Final answer
    x = 47,380.44

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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.