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Finding the Fourth Proportional to 71,065.88, 106,665.84 and 52,288.73

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Solution

The fourth proportional to 71,065.88, 106,665.84 and 52,288.73 is: 78,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,065.88 : 106,665.84 = 52,288.73 : x
  2. Step 2: Convert to fraction form
    71,065.88/106,665.84 = 52,288.73/x
  3. Step 3: Cross multiply
    71,065.88x = 106,665.84 × 52,288.73
  4. Step 4: Simplify right side
    71,065.88x = 5,577,420,774.65
  5. Step 5: Solve for x
    x = 5,577,420,774.65/71,065.88
  6. Step 6: Final answer
    x = 78,482.40

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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.