Home / 43,439.60-65,192.24-31,782.88

Finding the Fourth Proportional to 43,439.60, 65,192.24 and 31,782.88

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Solution

The fourth proportional to 43,439.60, 65,192.24 and 31,782.88 is: 47,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,439.60 : 65,192.24 = 31,782.88 : x
  2. Step 2: Convert to fraction form
    43,439.60/65,192.24 = 31,782.88/x
  3. Step 3: Cross multiply
    43,439.60x = 65,192.24 × 31,782.88
  4. Step 4: Simplify right side
    43,439.60x = 2,071,997,140.85
  5. Step 5: Solve for x
    x = 2,071,997,140.85/43,439.60
  6. Step 6: Final answer
    x = 47,698.35

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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.