Home / 43,875.20-65,809.56-12,708.56

Finding the Fourth Proportional to 43,875.20, 65,809.56 and 12,708.56

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Solution

The fourth proportional to 43,875.20, 65,809.56 and 12,708.56 is: 19,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,875.20 : 65,809.56 = 12,708.56 : x
  2. Step 2: Convert to fraction form
    43,875.20/65,809.56 = 12,708.56/x
  3. Step 3: Cross multiply
    43,875.20x = 65,809.56 × 12,708.56
  4. Step 4: Simplify right side
    43,875.20x = 836,344,741.83
  5. Step 5: Solve for x
    x = 836,344,741.83/43,875.20
  6. Step 6: Final answer
    x = 19,061.90

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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.