Home / 71,439.22-107,150.19-18,852.67

Finding the Fourth Proportional to 71,439.22, 107,150.19 and 18,852.67

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Solution

The fourth proportional to 71,439.22, 107,150.19 and 18,852.67 is: 28,276.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,439.22 : 107,150.19 = 18,852.67 : x
  2. Step 2: Convert to fraction form
    71,439.22/107,150.19 = 18,852.67/x
  3. Step 3: Cross multiply
    71,439.22x = 107,150.19 × 18,852.67
  4. Step 4: Simplify right side
    71,439.22x = 2,020,067,172.51
  5. Step 5: Solve for x
    x = 2,020,067,172.51/71,439.22
  6. Step 6: Final answer
    x = 28,276.72

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1.5x scale

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.