Home / 43,746.20-65,619.30-12,156.20

Finding the Fourth Proportional to 43,746.20, 65,619.30 and 12,156.20

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Solution

The fourth proportional to 43,746.20, 65,619.30 and 12,156.20 is: 18,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,746.20 : 65,619.30 = 12,156.20 : x
  2. Step 2: Convert to fraction form
    43,746.20/65,619.30 = 12,156.20/x
  3. Step 3: Cross multiply
    43,746.20x = 65,619.30 × 12,156.20
  4. Step 4: Simplify right side
    43,746.20x = 797,681,334.66
  5. Step 5: Solve for x
    x = 797,681,334.66/43,746.20
  6. Step 6: Final answer
    x = 18,234.30

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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.