Home / 61,112.64-91,809.31-43,142.19

Finding the Fourth Proportional to 61,112.64, 91,809.31 and 43,142.19

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Solution

The fourth proportional to 61,112.64, 91,809.31 and 43,142.19 is: 64,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,112.64 : 91,809.31 = 43,142.19 : x
  2. Step 2: Convert to fraction form
    61,112.64/91,809.31 = 43,142.19/x
  3. Step 3: Cross multiply
    61,112.64x = 91,809.31 × 43,142.19
  4. Step 4: Simplify right side
    61,112.64x = 3,960,854,695.79
  5. Step 5: Solve for x
    x = 3,960,854,695.79/61,112.64
  6. Step 6: Final answer
    x = 64,812.36

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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.