Home / 43,426.36-65,139.51-12,261.61

Finding the Fourth Proportional to 43,426.36, 65,139.51 and 12,261.61

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Solution

The fourth proportional to 43,426.36, 65,139.51 and 12,261.61 is: 18,392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,426.36 : 65,139.51 = 12,261.61 : x
  2. Step 2: Convert to fraction form
    43,426.36/65,139.51 = 12,261.61/x
  3. Step 3: Cross multiply
    43,426.36x = 65,139.51 × 12,261.61
  4. Step 4: Simplify right side
    43,426.36x = 798,715,267.21
  5. Step 5: Solve for x
    x = 798,715,267.21/43,426.36
  6. Step 6: Final answer
    x = 18,392.41

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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.