Home / 53,665.56-80,310-43,109.64

Finding the Fourth Proportional to 53,665.56, 80,310 and 43,109.64

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Solution

The fourth proportional to 53,665.56, 80,310 and 43,109.64 is: 64,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,665.56 : 80,310 = 43,109.64 : x
  2. Step 2: Convert to fraction form
    53,665.56/80,310 = 43,109.64/x
  3. Step 3: Cross multiply
    53,665.56x = 80,310 × 43,109.64
  4. Step 4: Simplify right side
    53,665.56x = 3,462,135,188.40
  5. Step 5: Solve for x
    x = 3,462,135,188.40/53,665.56
  6. Step 6: Final answer
    x = 64,513.17

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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.