Home / 85,849.36-118,432.14-55,644.46

Finding the Fourth Proportional to 85,849.36, 118,432.14 and 55,644.46

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Solution

The fourth proportional to 85,849.36, 118,432.14 and 55,644.46 is: 76,763.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,849.36 : 118,432.14 = 55,644.46 : x
  2. Step 2: Convert to fraction form
    85,849.36/118,432.14 = 55,644.46/x
  3. Step 3: Cross multiply
    85,849.36x = 118,432.14 × 55,644.46
  4. Step 4: Simplify right side
    85,849.36x = 6,590,092,476.94
  5. Step 5: Solve for x
    x = 6,590,092,476.94/85,849.36
  6. Step 6: Final answer
    x = 76,763.44

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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.