Home / 68,862.23-103,293.80-18,947.60

Finding the Fourth Proportional to 68,862.23, 103,293.80 and 18,947.60

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Solution

The fourth proportional to 68,862.23, 103,293.80 and 18,947.60 is: 28,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.23 : 103,293.80 = 18,947.60 : x
  2. Step 2: Convert to fraction form
    68,862.23/103,293.80 = 18,947.60/x
  3. Step 3: Cross multiply
    68,862.23x = 103,293.80 × 18,947.60
  4. Step 4: Simplify right side
    68,862.23x = 1,957,169,604.88
  5. Step 5: Solve for x
    x = 1,957,169,604.88/68,862.23
  6. Step 6: Final answer
    x = 28,421.53

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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.