Home / 66,822.08-92,150.84-39,960.32

Finding the Fourth Proportional to 66,822.08, 92,150.84 and 39,960.32

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Solution

The fourth proportional to 66,822.08, 92,150.84 and 39,960.32 is: 55,107.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,822.08 : 92,150.84 = 39,960.32 : x
  2. Step 2: Convert to fraction form
    66,822.08/92,150.84 = 39,960.32/x
  3. Step 3: Cross multiply
    66,822.08x = 92,150.84 × 39,960.32
  4. Step 4: Simplify right side
    66,822.08x = 3,682,377,054.67
  5. Step 5: Solve for x
    x = 3,682,377,054.67/66,822.08
  6. Step 6: Final answer
    x = 55,107.19

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1.5x scale

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.