Home / 45,423.41-68,135.13-20,434.27

Finding the Fourth Proportional to 45,423.41, 68,135.13 and 20,434.27

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Solution

The fourth proportional to 45,423.41, 68,135.13 and 20,434.27 is: 30,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,423.41 : 68,135.13 = 20,434.27 : x
  2. Step 2: Convert to fraction form
    45,423.41/68,135.13 = 20,434.27/x
  3. Step 3: Cross multiply
    45,423.41x = 68,135.13 × 20,434.27
  4. Step 4: Simplify right side
    45,423.41x = 1,392,291,642.91
  5. Step 5: Solve for x
    x = 1,392,291,642.91/45,423.41
  6. Step 6: Final answer
    x = 30,651.41

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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.