Home / 66,125.40-99,188.10-39,816.60

Finding the Fourth Proportional to 66,125.40, 99,188.10 and 39,816.60

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Solution

The fourth proportional to 66,125.40, 99,188.10 and 39,816.60 is: 59,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,125.40 : 99,188.10 = 39,816.60 : x
  2. Step 2: Convert to fraction form
    66,125.40/99,188.10 = 39,816.60/x
  3. Step 3: Cross multiply
    66,125.40x = 99,188.10 × 39,816.60
  4. Step 4: Simplify right side
    66,125.40x = 3,949,332,902.46
  5. Step 5: Solve for x
    x = 3,949,332,902.46/66,125.40
  6. Step 6: Final answer
    x = 59,724.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.