Home / 54,280.43-81,441.15-21,002.49

Finding the Fourth Proportional to 54,280.43, 81,441.15 and 21,002.49

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Solution

The fourth proportional to 54,280.43, 81,441.15 and 21,002.49 is: 31,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,280.43 : 81,441.15 = 21,002.49 : x
  2. Step 2: Convert to fraction form
    54,280.43/81,441.15 = 21,002.49/x
  3. Step 3: Cross multiply
    54,280.43x = 81,441.15 × 21,002.49
  4. Step 4: Simplify right side
    54,280.43x = 1,710,466,859.70
  5. Step 5: Solve for x
    x = 1,710,466,859.70/54,280.43
  6. Step 6: Final answer
    x = 31,511.67

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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.