Home / 62,172.48-85,772.40-43,320.54

Finding the Fourth Proportional to 62,172.48, 85,772.40 and 43,320.54

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Solution

The fourth proportional to 62,172.48, 85,772.40 and 43,320.54 is: 59,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,172.48 : 85,772.40 = 43,320.54 : x
  2. Step 2: Convert to fraction form
    62,172.48/85,772.40 = 43,320.54/x
  3. Step 3: Cross multiply
    62,172.48x = 85,772.40 × 43,320.54
  4. Step 4: Simplify right side
    62,172.48x = 3,715,706,685.10
  5. Step 5: Solve for x
    x = 3,715,706,685.10/62,172.48
  6. Step 6: Final answer
    x = 59,764.49

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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.