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Finding the Fourth Proportional to 50,070.62, 75,078.99 and 20,069.80

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Solution

The fourth proportional to 50,070.62, 75,078.99 and 20,069.80 is: 30,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,070.62 : 75,078.99 = 20,069.80 : x
  2. Step 2: Convert to fraction form
    50,070.62/75,078.99 = 20,069.80/x
  3. Step 3: Cross multiply
    50,070.62x = 75,078.99 × 20,069.80
  4. Step 4: Simplify right side
    50,070.62x = 1,506,820,313.50
  5. Step 5: Solve for x
    x = 1,506,820,313.50/50,070.62
  6. Step 6: Final answer
    x = 30,093.90

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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.