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Finding the Fourth Proportional to 71,873.69, 99,185.73 and 40,044.67

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Solution

The fourth proportional to 71,873.69, 99,185.73 and 40,044.67 is: 55,261.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,873.69 : 99,185.73 = 40,044.67 : x
  2. Step 2: Convert to fraction form
    71,873.69/99,185.73 = 40,044.67/x
  3. Step 3: Cross multiply
    71,873.69x = 99,185.73 × 40,044.67
  4. Step 4: Simplify right side
    71,873.69x = 3,971,859,626.34
  5. Step 5: Solve for x
    x = 3,971,859,626.34/71,873.69
  6. Step 6: Final answer
    x = 55,261.66

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1.5x scale

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.