Home / 71,439.21-107,150.61-18,852.80

Finding the Fourth Proportional to 71,439.21, 107,150.61 and 18,852.80

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Solution

The fourth proportional to 71,439.21, 107,150.61 and 18,852.80 is: 28,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,439.21 : 107,150.61 = 18,852.80 : x
  2. Step 2: Convert to fraction form
    71,439.21/107,150.61 = 18,852.80/x
  3. Step 3: Cross multiply
    71,439.21x = 107,150.61 × 18,852.80
  4. Step 4: Simplify right side
    71,439.21x = 2,020,088,555.15
  5. Step 5: Solve for x
    x = 2,020,088,555.15/71,439.21
  6. Step 6: Final answer
    x = 28,277.03

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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.