Home / 68,920.41-103,401.37-21,533.59

Finding the Fourth Proportional to 68,920.41, 103,401.37 and 21,533.59

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Solution

The fourth proportional to 68,920.41, 103,401.37 and 21,533.59 is: 32,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,920.41 : 103,401.37 = 21,533.59 : x
  2. Step 2: Convert to fraction form
    68,920.41/103,401.37 = 21,533.59/x
  3. Step 3: Cross multiply
    68,920.41x = 103,401.37 × 21,533.59
  4. Step 4: Simplify right side
    68,920.41x = 2,226,602,707.02
  5. Step 5: Solve for x
    x = 2,226,602,707.02/68,920.41
  6. Step 6: Final answer
    x = 32,306.87

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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.