Home / 43,158.69-64,736.55-13,575.87

Finding the Fourth Proportional to 43,158.69, 64,736.55 and 13,575.87

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Solution

The fourth proportional to 43,158.69, 64,736.55 and 13,575.87 is: 20,363.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,158.69 : 64,736.55 = 13,575.87 : x
  2. Step 2: Convert to fraction form
    43,158.69/64,736.55 = 13,575.87/x
  3. Step 3: Cross multiply
    43,158.69x = 64,736.55 × 13,575.87
  4. Step 4: Simplify right side
    43,158.69x = 878,854,987.05
  5. Step 5: Solve for x
    x = 878,854,987.05/43,158.69
  6. Step 6: Final answer
    x = 20,363.34

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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.