Home / 76,691,345.92-105,836,668.96-45,356,256

Finding the Fourth Proportional to 76,691,345.92, 105,836,668.96 and 45,356,256

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Solution

The fourth proportional to 76,691,345.92, 105,836,668.96 and 45,356,256 is: 62,593,177.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,691,345.92 : 105,836,668.96 = 45,356,256 : x
  2. Step 2: Convert to fraction form
    76,691,345.92/105,836,668.96 = 45,356,256/x
  3. Step 3: Cross multiply
    76,691,345.92x = 105,836,668.96 × 45,356,256
  4. Step 4: Simplify right side
    76,691,345.92x = 4,800,355,051,537,013
  5. Step 5: Solve for x
    x = 4,800,355,051,537,013/76,691,345.92
  6. Step 6: Final answer
    x = 62,593,177.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.