Home / 61,815.64-85,274.18-39,116.36

Finding the Fourth Proportional to 61,815.64, 85,274.18 and 39,116.36

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Solution

The fourth proportional to 61,815.64, 85,274.18 and 39,116.36 is: 53,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,815.64 : 85,274.18 = 39,116.36 : x
  2. Step 2: Convert to fraction form
    61,815.64/85,274.18 = 39,116.36/x
  3. Step 3: Cross multiply
    61,815.64x = 85,274.18 × 39,116.36
  4. Step 4: Simplify right side
    61,815.64x = 3,335,615,523.58
  5. Step 5: Solve for x
    x = 3,335,615,523.58/61,815.64
  6. Step 6: Final answer
    x = 53,960.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.