Home / 83,040.64-114,561.14-57,904.72

Finding the Fourth Proportional to 83,040.64, 114,561.14 and 57,904.72

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Solution

The fourth proportional to 83,040.64, 114,561.14 and 57,904.72 is: 79,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,040.64 : 114,561.14 = 57,904.72 : x
  2. Step 2: Convert to fraction form
    83,040.64/114,561.14 = 57,904.72/x
  3. Step 3: Cross multiply
    83,040.64x = 114,561.14 × 57,904.72
  4. Step 4: Simplify right side
    83,040.64x = 6,633,630,734.58
  5. Step 5: Solve for x
    x = 6,633,630,734.58/83,040.64
  6. Step 6: Final answer
    x = 79,884.15

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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.