Home / 72,557,081.25-100,128,772.13-39,962,033.25

Finding the Fourth Proportional to 72,557,081.25, 100,128,772.13 and 39,962,033.25

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Solution

The fourth proportional to 72,557,081.25, 100,128,772.13 and 39,962,033.25 is: 55,147,605.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,557,081.25 : 100,128,772.13 = 39,962,033.25 : x
  2. Step 2: Convert to fraction form
    72,557,081.25/100,128,772.13 = 39,962,033.25/x
  3. Step 3: Cross multiply
    72,557,081.25x = 100,128,772.13 × 39,962,033.25
  4. Step 4: Simplify right side
    72,557,081.25x = 4,001,349,320,940,923
  5. Step 5: Solve for x
    x = 4,001,349,320,940,923/72,557,081.25
  6. Step 6: Final answer
    x = 55,147,605.89

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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.