Home / 43,133.85-64,682.55-13,543.74

Finding the Fourth Proportional to 43,133.85, 64,682.55 and 13,543.74

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Solution

The fourth proportional to 43,133.85, 64,682.55 and 13,543.74 is: 20,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,133.85 : 64,682.55 = 13,543.74 : x
  2. Step 2: Convert to fraction form
    43,133.85/64,682.55 = 13,543.74/x
  3. Step 3: Cross multiply
    43,133.85x = 64,682.55 × 13,543.74
  4. Step 4: Simplify right side
    43,133.85x = 876,043,639.74
  5. Step 5: Solve for x
    x = 876,043,639.74/43,133.85
  6. Step 6: Final answer
    x = 20,309.89

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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.