Home / 75,977.16-104,837.40-47,691.96

Finding the Fourth Proportional to 75,977.16, 104,837.40 and 47,691.96

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Solution

The fourth proportional to 75,977.16, 104,837.40 and 47,691.96 is: 65,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,977.16 : 104,837.40 = 47,691.96 : x
  2. Step 2: Convert to fraction form
    75,977.16/104,837.40 = 47,691.96/x
  3. Step 3: Cross multiply
    75,977.16x = 104,837.40 × 47,691.96
  4. Step 4: Simplify right side
    75,977.16x = 4,999,901,087.30
  5. Step 5: Solve for x
    x = 4,999,901,087.30/75,977.16
  6. Step 6: Final answer
    x = 65,807.95

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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.