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Finding the Fourth Proportional to 62,775.76, 94,172.86 and 20,648.00

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Solution

The fourth proportional to 62,775.76, 94,172.86 and 20,648.00 is: 30,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,775.76 : 94,172.86 = 20,648.00 : x
  2. Step 2: Convert to fraction form
    62,775.76/94,172.86 = 20,648.00/x
  3. Step 3: Cross multiply
    62,775.76x = 94,172.86 × 20,648.00
  4. Step 4: Simplify right side
    62,775.76x = 1,944,480,944.80
  5. Step 5: Solve for x
    x = 1,944,480,944.80/62,775.76
  6. Step 6: Final answer
    x = 30,975.03

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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.