Home / 47,390.60-65,396.40-29,485.04

Finding the Fourth Proportional to 47,390.60, 65,396.40 and 29,485.04

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Solution

The fourth proportional to 47,390.60, 65,396.40 and 29,485.04 is: 40,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,390.60 : 65,396.40 = 29,485.04 : x
  2. Step 2: Convert to fraction form
    47,390.60/65,396.40 = 29,485.04/x
  3. Step 3: Cross multiply
    47,390.60x = 65,396.40 × 29,485.04
  4. Step 4: Simplify right side
    47,390.60x = 1,928,215,469.86
  5. Step 5: Solve for x
    x = 1,928,215,469.86/47,390.60
  6. Step 6: Final answer
    x = 40,687.72

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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.