Home / 66,904.89-100,357.38-16,988.73

Finding the Fourth Proportional to 66,904.89, 100,357.38 and 16,988.73

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Solution

The fourth proportional to 66,904.89, 100,357.38 and 16,988.73 is: 25,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,904.89 : 100,357.38 = 16,988.73 : x
  2. Step 2: Convert to fraction form
    66,904.89/100,357.38 = 16,988.73/x
  3. Step 3: Cross multiply
    66,904.89x = 100,357.38 × 16,988.73
  4. Step 4: Simplify right side
    66,904.89x = 1,704,944,432.33
  5. Step 5: Solve for x
    x = 1,704,944,432.33/66,904.89
  6. Step 6: Final answer
    x = 25,483.11

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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.