Home / 81,044,385.52-112,029,743.24-72,310,401.84

Finding the Fourth Proportional to 81,044,385.52, 112,029,743.24 and 72,310,401.84

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Solution

The fourth proportional to 81,044,385.52, 112,029,743.24 and 72,310,401.84 is: 99,956,532.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,044,385.52 : 112,029,743.24 = 72,310,401.84 : x
  2. Step 2: Convert to fraction form
    81,044,385.52/112,029,743.24 = 72,310,401.84/x
  3. Step 3: Cross multiply
    81,044,385.52x = 112,029,743.24 × 72,310,401.84
  4. Step 4: Simplify right side
    81,044,385.52x = 8,100,915,751,716,424
  5. Step 5: Solve for x
    x = 8,100,915,751,716,424/81,044,385.52
  6. Step 6: Final answer
    x = 99,956,532.46

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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.