Home / 53,758.89-80,658.05-18,708.57

Finding the Fourth Proportional to 53,758.89, 80,658.05 and 18,708.57

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Solution

The fourth proportional to 53,758.89, 80,658.05 and 18,708.57 is: 28,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,758.89 : 80,658.05 = 18,708.57 : x
  2. Step 2: Convert to fraction form
    53,758.89/80,658.05 = 18,708.57/x
  3. Step 3: Cross multiply
    53,758.89x = 80,658.05 × 18,708.57
  4. Step 4: Simplify right side
    53,758.89x = 1,508,996,680.95
  5. Step 5: Solve for x
    x = 1,508,996,680.95/53,758.89
  6. Step 6: Final answer
    x = 28,069.71

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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.