Home / 69,455.20-104,152.08-20,211.04

Finding the Fourth Proportional to 69,455.20, 104,152.08 and 20,211.04

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Solution

The fourth proportional to 69,455.20, 104,152.08 and 20,211.04 is: 30,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,455.20 : 104,152.08 = 20,211.04 : x
  2. Step 2: Convert to fraction form
    69,455.20/104,152.08 = 20,211.04/x
  3. Step 3: Cross multiply
    69,455.20x = 104,152.08 × 20,211.04
  4. Step 4: Simplify right side
    69,455.20x = 2,105,021,854.96
  5. Step 5: Solve for x
    x = 2,105,021,854.96/69,455.20
  6. Step 6: Final answer
    x = 30,307.62

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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.