Home / 77,431.95-116,410.37-61,836.21

Finding the Fourth Proportional to 77,431.95, 116,410.37 and 61,836.21

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Solution

The fourth proportional to 77,431.95, 116,410.37 and 61,836.21 is: 92,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,431.95 : 116,410.37 = 61,836.21 : x
  2. Step 2: Convert to fraction form
    77,431.95/116,410.37 = 61,836.21/x
  3. Step 3: Cross multiply
    77,431.95x = 116,410.37 × 61,836.21
  4. Step 4: Simplify right side
    77,431.95x = 7,198,375,776.32
  5. Step 5: Solve for x
    x = 7,198,375,776.32/77,431.95
  6. Step 6: Final answer
    x = 92,963.90

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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.