Home / 65,928.12-90,980.91-39,083.82

Finding the Fourth Proportional to 65,928.12, 90,980.91 and 39,083.82

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Solution

The fourth proportional to 65,928.12, 90,980.91 and 39,083.82 is: 53,935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,928.12 : 90,980.91 = 39,083.82 : x
  2. Step 2: Convert to fraction form
    65,928.12/90,980.91 = 39,083.82/x
  3. Step 3: Cross multiply
    65,928.12x = 90,980.91 × 39,083.82
  4. Step 4: Simplify right side
    65,928.12x = 3,555,881,509.88
  5. Step 5: Solve for x
    x = 3,555,881,509.88/65,928.12
  6. Step 6: Final answer
    x = 53,935.73

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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.