Home / 81,985.68-113,138.01-46,174.95

Finding the Fourth Proportional to 81,985.68, 113,138.01 and 46,174.95

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Solution

The fourth proportional to 81,985.68, 113,138.01 and 46,174.95 is: 63,720.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,985.68 : 113,138.01 = 46,174.95 : x
  2. Step 2: Convert to fraction form
    81,985.68/113,138.01 = 46,174.95/x
  3. Step 3: Cross multiply
    81,985.68x = 113,138.01 × 46,174.95
  4. Step 4: Simplify right side
    81,985.68x = 5,224,141,954.85
  5. Step 5: Solve for x
    x = 5,224,141,954.85/81,985.68
  6. Step 6: Final answer
    x = 63,720.18

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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.