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Finding the Fourth Proportional to 77,300.37, 115,913.90 and 29,937.64

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Solution

The fourth proportional to 77,300.37, 115,913.90 and 29,937.64 is: 44,892.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,300.37 : 115,913.90 = 29,937.64 : x
  2. Step 2: Convert to fraction form
    77,300.37/115,913.90 = 29,937.64/x
  3. Step 3: Cross multiply
    77,300.37x = 115,913.90 × 29,937.64
  4. Step 4: Simplify right side
    77,300.37x = 3,470,188,511.74
  5. Step 5: Solve for x
    x = 3,470,188,511.74/77,300.37
  6. Step 6: Final answer
    x = 44,892.26

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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.