Home / 69,515.79-104,274.21-45,520.29

Finding the Fourth Proportional to 69,515.79, 104,274.21 and 45,520.29

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Solution

The fourth proportional to 69,515.79, 104,274.21 and 45,520.29 is: 68,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,515.79 : 104,274.21 = 45,520.29 : x
  2. Step 2: Convert to fraction form
    69,515.79/104,274.21 = 45,520.29/x
  3. Step 3: Cross multiply
    69,515.79x = 104,274.21 × 45,520.29
  4. Step 4: Simplify right side
    69,515.79x = 4,746,592,278.72
  5. Step 5: Solve for x
    x = 4,746,592,278.72/69,515.79
  6. Step 6: Final answer
    x = 68,280.78

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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.