Home / 45,256.05-67,891.64-18,962.78

Finding the Fourth Proportional to 45,256.05, 67,891.64 and 18,962.78

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Solution

The fourth proportional to 45,256.05, 67,891.64 and 18,962.78 is: 28,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,256.05 : 67,891.64 = 18,962.78 : x
  2. Step 2: Convert to fraction form
    45,256.05/67,891.64 = 18,962.78/x
  3. Step 3: Cross multiply
    45,256.05x = 67,891.64 × 18,962.78
  4. Step 4: Simplify right side
    45,256.05x = 1,287,413,798.89
  5. Step 5: Solve for x
    x = 1,287,413,798.89/45,256.05
  6. Step 6: Final answer
    x = 28,447.33

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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.