Home / 61,128.75-84,330.95-43,239.09

Finding the Fourth Proportional to 61,128.75, 84,330.95 and 43,239.09

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Solution

The fourth proportional to 61,128.75, 84,330.95 and 43,239.09 is: 59,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,128.75 : 84,330.95 = 43,239.09 : x
  2. Step 2: Convert to fraction form
    61,128.75/84,330.95 = 43,239.09/x
  3. Step 3: Cross multiply
    61,128.75x = 84,330.95 × 43,239.09
  4. Step 4: Simplify right side
    61,128.75x = 3,646,393,320.64
  5. Step 5: Solve for x
    x = 3,646,393,320.64/61,128.75
  6. Step 6: Final answer
    x = 59,651.04

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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.