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Finding the Fourth Proportional to 62,978.70, 94,358.70 and 53,137.20

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Solution

The fourth proportional to 62,978.70, 94,358.70 and 53,137.20 is: 79,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,978.70 : 94,358.70 = 53,137.20 : x
  2. Step 2: Convert to fraction form
    62,978.70/94,358.70 = 53,137.20/x
  3. Step 3: Cross multiply
    62,978.70x = 94,358.70 × 53,137.20
  4. Step 4: Simplify right side
    62,978.70x = 5,013,957,113.64
  5. Step 5: Solve for x
    x = 5,013,957,113.64/62,978.70
  6. Step 6: Final answer
    x = 79,613.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.