Home / 68,528.57-94,578.11-38,315.67

Finding the Fourth Proportional to 68,528.57, 94,578.11 and 38,315.67

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Solution

The fourth proportional to 68,528.57, 94,578.11 and 38,315.67 is: 52,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528.57 : 94,578.11 = 38,315.67 : x
  2. Step 2: Convert to fraction form
    68,528.57/94,578.11 = 38,315.67/x
  3. Step 3: Cross multiply
    68,528.57x = 94,578.11 × 38,315.67
  4. Step 4: Simplify right side
    68,528.57x = 3,623,823,651.98
  5. Step 5: Solve for x
    x = 3,623,823,651.98/68,528.57
  6. Step 6: Final answer
    x = 52,880.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.