Home / 43,120.40-64,778.64-37,215.68

Finding the Fourth Proportional to 43,120.40, 64,778.64 and 37,215.68

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Solution

The fourth proportional to 43,120.40, 64,778.64 and 37,215.68 is: 55,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,120.40 : 64,778.64 = 37,215.68 : x
  2. Step 2: Convert to fraction form
    43,120.40/64,778.64 = 37,215.68/x
  3. Step 3: Cross multiply
    43,120.40x = 64,778.64 × 37,215.68
  4. Step 4: Simplify right side
    43,120.40x = 2,410,781,137.08
  5. Step 5: Solve for x
    x = 2,410,781,137.08/43,120.40
  6. Step 6: Final answer
    x = 55,908.13

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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.