Home / 51,100.12-70,517.67-28,438.75

Finding the Fourth Proportional to 51,100.12, 70,517.67 and 28,438.75

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Solution

The fourth proportional to 51,100.12, 70,517.67 and 28,438.75 is: 39,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,100.12 : 70,517.67 = 28,438.75 : x
  2. Step 2: Convert to fraction form
    51,100.12/70,517.67 = 28,438.75/x
  3. Step 3: Cross multiply
    51,100.12x = 70,517.67 × 28,438.75
  4. Step 4: Simplify right side
    51,100.12x = 2,005,434,387.71
  5. Step 5: Solve for x
    x = 2,005,434,387.71/51,100.12
  6. Step 6: Final answer
    x = 39,245.20

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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.