Home / 66,768.87-100,042.07-47,005.82

Finding the Fourth Proportional to 66,768.87, 100,042.07 and 47,005.82

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Solution

The fourth proportional to 66,768.87, 100,042.07 and 47,005.82 is: 70,430.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,768.87 : 100,042.07 = 47,005.82 : x
  2. Step 2: Convert to fraction form
    66,768.87/100,042.07 = 47,005.82/x
  3. Step 3: Cross multiply
    66,768.87x = 100,042.07 × 47,005.82
  4. Step 4: Simplify right side
    66,768.87x = 4,702,558,799.61
  5. Step 5: Solve for x
    x = 4,702,558,799.61/66,768.87
  6. Step 6: Final answer
    x = 70,430.41

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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.