Home / 50,285.99-75,455.10-20,307.60

Finding the Fourth Proportional to 50,285.99, 75,455.10 and 20,307.60

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Solution

The fourth proportional to 50,285.99, 75,455.10 and 20,307.60 is: 30,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,285.99 : 75,455.10 = 20,307.60 : x
  2. Step 2: Convert to fraction form
    50,285.99/75,455.10 = 20,307.60/x
  3. Step 3: Cross multiply
    50,285.99x = 75,455.10 × 20,307.60
  4. Step 4: Simplify right side
    50,285.99x = 1,532,311,988.76
  5. Step 5: Solve for x
    x = 1,532,311,988.76/50,285.99
  6. Step 6: Final answer
    x = 30,471.95

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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.