Home / 75,702.11-113,570.75-25,782.64

Finding the Fourth Proportional to 75,702.11, 113,570.75 and 25,782.64

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Solution

The fourth proportional to 75,702.11, 113,570.75 and 25,782.64 is: 38,679.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,702.11 : 113,570.75 = 25,782.64 : x
  2. Step 2: Convert to fraction form
    75,702.11/113,570.75 = 25,782.64/x
  3. Step 3: Cross multiply
    75,702.11x = 113,570.75 × 25,782.64
  4. Step 4: Simplify right side
    75,702.11x = 2,928,153,193.93
  5. Step 5: Solve for x
    x = 2,928,153,193.93/75,702.11
  6. Step 6: Final answer
    x = 38,679.94

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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.