Home / 75,783.13-113,674.68-42,069.85

Finding the Fourth Proportional to 75,783.13, 113,674.68 and 42,069.85

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Solution

The fourth proportional to 75,783.13, 113,674.68 and 42,069.85 is: 63,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,783.13 : 113,674.68 = 42,069.85 : x
  2. Step 2: Convert to fraction form
    75,783.13/113,674.68 = 42,069.85/x
  3. Step 3: Cross multiply
    75,783.13x = 113,674.68 × 42,069.85
  4. Step 4: Simplify right side
    75,783.13x = 4,782,276,452.21
  5. Step 5: Solve for x
    x = 4,782,276,452.21/75,783.13
  6. Step 6: Final answer
    x = 63,104.77

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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.