Home / 75,909.12-104,754.60-42,375.12

Finding the Fourth Proportional to 75,909.12, 104,754.60 and 42,375.12

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Solution

The fourth proportional to 75,909.12, 104,754.60 and 42,375.12 is: 58,477.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,909.12 : 104,754.60 = 42,375.12 : x
  2. Step 2: Convert to fraction form
    75,909.12/104,754.60 = 42,375.12/x
  3. Step 3: Cross multiply
    75,909.12x = 104,754.60 × 42,375.12
  4. Step 4: Simplify right side
    75,909.12x = 4,438,988,745.55
  5. Step 5: Solve for x
    x = 4,438,988,745.55/75,909.12
  6. Step 6: Final answer
    x = 58,477.67

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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.