Home / 68,830.40-94,980.20-38,611.52

Finding the Fourth Proportional to 68,830.40, 94,980.20 and 38,611.52

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Solution

The fourth proportional to 68,830.40, 94,980.20 and 38,611.52 is: 53,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,830.40 : 94,980.20 = 38,611.52 : x
  2. Step 2: Convert to fraction form
    68,830.40/94,980.20 = 38,611.52/x
  3. Step 3: Cross multiply
    68,830.40x = 94,980.20 × 38,611.52
  4. Step 4: Simplify right side
    68,830.40x = 3,667,329,891.90
  5. Step 5: Solve for x
    x = 3,667,329,891.90/68,830.40
  6. Step 6: Final answer
    x = 53,280.67

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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.