Home / 61,238.03-91,857.04-19,121.72

Finding the Fourth Proportional to 61,238.03, 91,857.04 and 19,121.72

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Solution

The fourth proportional to 61,238.03, 91,857.04 and 19,121.72 is: 28,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,238.03 : 91,857.04 = 19,121.72 : x
  2. Step 2: Convert to fraction form
    61,238.03/91,857.04 = 19,121.72/x
  3. Step 3: Cross multiply
    61,238.03x = 91,857.04 × 19,121.72
  4. Step 4: Simplify right side
    61,238.03x = 1,756,464,199.38
  5. Step 5: Solve for x
    x = 1,756,464,199.38/61,238.03
  6. Step 6: Final answer
    x = 28,682.57

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1.5x scale

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.