Home / 70,845.30-106,285.37-20,925.14

Finding the Fourth Proportional to 70,845.30, 106,285.37 and 20,925.14

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Solution

The fourth proportional to 70,845.30, 106,285.37 and 20,925.14 is: 31,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,845.30 : 106,285.37 = 20,925.14 : x
  2. Step 2: Convert to fraction form
    70,845.30/106,285.37 = 20,925.14/x
  3. Step 3: Cross multiply
    70,845.30x = 106,285.37 × 20,925.14
  4. Step 4: Simplify right side
    70,845.30x = 2,224,035,611.15
  5. Step 5: Solve for x
    x = 2,224,035,611.15/70,845.30
  6. Step 6: Final answer
    x = 31,392.85

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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.