Home / 67,200.02-100,815.06-20,456.54

Finding the Fourth Proportional to 67,200.02, 100,815.06 and 20,456.54

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Solution

The fourth proportional to 67,200.02, 100,815.06 and 20,456.54 is: 30,689.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,200.02 : 100,815.06 = 20,456.54 : x
  2. Step 2: Convert to fraction form
    67,200.02/100,815.06 = 20,456.54/x
  3. Step 3: Cross multiply
    67,200.02x = 100,815.06 × 20,456.54
  4. Step 4: Simplify right side
    67,200.02x = 2,062,327,307.49
  5. Step 5: Solve for x
    x = 2,062,327,307.49/67,200.02
  6. Step 6: Final answer
    x = 30,689.39

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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.