Home / 66,518.36-99,721.34-30,961.32

Finding the Fourth Proportional to 66,518.36, 99,721.34 and 30,961.32

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Solution

The fourth proportional to 66,518.36, 99,721.34 and 30,961.32 is: 46,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518.36 : 99,721.34 = 30,961.32 : x
  2. Step 2: Convert to fraction form
    66,518.36/99,721.34 = 30,961.32/x
  3. Step 3: Cross multiply
    66,518.36x = 99,721.34 × 30,961.32
  4. Step 4: Simplify right side
    66,518.36x = 3,087,504,318.57
  5. Step 5: Solve for x
    x = 3,087,504,318.57/66,518.36
  6. Step 6: Final answer
    x = 46,415.82

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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.