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Finding the Fourth Proportional to 71,018.56, 106,527.84 and 18,423.64

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Solution

The fourth proportional to 71,018.56, 106,527.84 and 18,423.64 is: 27,635.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,018.56 : 106,527.84 = 18,423.64 : x
  2. Step 2: Convert to fraction form
    71,018.56/106,527.84 = 18,423.64/x
  3. Step 3: Cross multiply
    71,018.56x = 106,527.84 × 18,423.64
  4. Step 4: Simplify right side
    71,018.56x = 1,962,630,574.14
  5. Step 5: Solve for x
    x = 1,962,630,574.14/71,018.56
  6. Step 6: Final answer
    x = 27,635.46

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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.