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Finding the Fourth Proportional to 80,885.71, 111,622.38 and 45,074.93

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Solution

The fourth proportional to 80,885.71, 111,622.38 and 45,074.93 is: 62,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,885.71 : 111,622.38 = 45,074.93 : x
  2. Step 2: Convert to fraction form
    80,885.71/111,622.38 = 45,074.93/x
  3. Step 3: Cross multiply
    80,885.71x = 111,622.38 × 45,074.93
  4. Step 4: Simplify right side
    80,885.71x = 5,031,370,964.93
  5. Step 5: Solve for x
    x = 5,031,370,964.93/80,885.71
  6. Step 6: Final answer
    x = 62,203.46

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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.