Home / 70,074.11-105,143.97-30,626.10

Finding the Fourth Proportional to 70,074.11, 105,143.97 and 30,626.10

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Solution

The fourth proportional to 70,074.11, 105,143.97 and 30,626.10 is: 45,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,074.11 : 105,143.97 = 30,626.10 : x
  2. Step 2: Convert to fraction form
    70,074.11/105,143.97 = 30,626.10/x
  3. Step 3: Cross multiply
    70,074.11x = 105,143.97 × 30,626.10
  4. Step 4: Simplify right side
    70,074.11x = 3,220,149,854.46
  5. Step 5: Solve for x
    x = 3,220,149,854.46/70,074.11
  6. Step 6: Final answer
    x = 45,953.49

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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.