Home / 84,901.12-117,158.40-47,174.08

Finding the Fourth Proportional to 84,901.12, 117,158.40 and 47,174.08

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Solution

The fourth proportional to 84,901.12, 117,158.40 and 47,174.08 is: 65,097.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,901.12 : 117,158.40 = 47,174.08 : x
  2. Step 2: Convert to fraction form
    84,901.12/117,158.40 = 47,174.08/x
  3. Step 3: Cross multiply
    84,901.12x = 117,158.40 × 47,174.08
  4. Step 4: Simplify right side
    84,901.12x = 5,526,839,734.27
  5. Step 5: Solve for x
    x = 5,526,839,734.27/84,901.12
  6. Step 6: Final answer
    x = 65,097.37

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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.