Home / 77,906.98-116,818.89-40,429.32

Finding the Fourth Proportional to 77,906.98, 116,818.89 and 40,429.32

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Solution

The fourth proportional to 77,906.98, 116,818.89 and 40,429.32 is: 60,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,906.98 : 116,818.89 = 40,429.32 : x
  2. Step 2: Convert to fraction form
    77,906.98/116,818.89 = 40,429.32/x
  3. Step 3: Cross multiply
    77,906.98x = 116,818.89 × 40,429.32
  4. Step 4: Simplify right side
    77,906.98x = 4,722,908,285.85
  5. Step 5: Solve for x
    x = 4,722,908,285.85/77,906.98
  6. Step 6: Final answer
    x = 60,622.40

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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.