Home / 82,138.20-113,371.37-46,348.86

Finding the Fourth Proportional to 82,138.20, 113,371.37 and 46,348.86

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Solution

The fourth proportional to 82,138.20, 113,371.37 and 46,348.86 is: 63,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,138.20 : 113,371.37 = 46,348.86 : x
  2. Step 2: Convert to fraction form
    82,138.20/113,371.37 = 46,348.86/x
  3. Step 3: Cross multiply
    82,138.20x = 113,371.37 × 46,348.86
  4. Step 4: Simplify right side
    82,138.20x = 5,254,633,756.14
  5. Step 5: Solve for x
    x = 5,254,633,756.14/82,138.20
  6. Step 6: Final answer
    x = 63,973.08

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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.