Home / 43,650.20-65,475.30-12,485.45

Finding the Fourth Proportional to 43,650.20, 65,475.30 and 12,485.45

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Solution

The fourth proportional to 43,650.20, 65,475.30 and 12,485.45 is: 18,728.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,650.20 : 65,475.30 = 12,485.45 : x
  2. Step 2: Convert to fraction form
    43,650.20/65,475.30 = 12,485.45/x
  3. Step 3: Cross multiply
    43,650.20x = 65,475.30 × 12,485.45
  4. Step 4: Simplify right side
    43,650.20x = 817,488,502.54
  5. Step 5: Solve for x
    x = 817,488,502.54/43,650.20
  6. Step 6: Final answer
    x = 18,728.17

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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.