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Finding the Fourth Proportional to 77,043.56, 115,566.87 and 34,915.86

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Solution

The fourth proportional to 77,043.56, 115,566.87 and 34,915.86 is: 52,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,043.56 : 115,566.87 = 34,915.86 : x
  2. Step 2: Convert to fraction form
    77,043.56/115,566.87 = 34,915.86/x
  3. Step 3: Cross multiply
    77,043.56x = 115,566.87 × 34,915.86
  4. Step 4: Simplify right side
    77,043.56x = 4,035,116,653.56
  5. Step 5: Solve for x
    x = 4,035,116,653.56/77,043.56
  6. Step 6: Final answer
    x = 52,374.48

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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.