Home / 66,477.19-99,659.85-30,920.44

Finding the Fourth Proportional to 66,477.19, 99,659.85 and 30,920.44

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Solution

The fourth proportional to 66,477.19, 99,659.85 and 30,920.44 is: 46,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477.19 : 99,659.85 = 30,920.44 : x
  2. Step 2: Convert to fraction form
    66,477.19/99,659.85 = 30,920.44/x
  3. Step 3: Cross multiply
    66,477.19x = 99,659.85 × 30,920.44
  4. Step 4: Simplify right side
    66,477.19x = 3,081,526,163.18
  5. Step 5: Solve for x
    x = 3,081,526,163.18/66,477.19
  6. Step 6: Final answer
    x = 46,354.64

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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.