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Finding the Fourth Proportional to 71,444.56, 107,158.58 and 18,858.14

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Solution

The fourth proportional to 71,444.56, 107,158.58 and 18,858.14 is: 28,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,444.56 : 107,158.58 = 18,858.14 : x
  2. Step 2: Convert to fraction form
    71,444.56/107,158.58 = 18,858.14/x
  3. Step 3: Cross multiply
    71,444.56x = 107,158.58 × 18,858.14
  4. Step 4: Simplify right side
    71,444.56x = 2,020,811,503.84
  5. Step 5: Solve for x
    x = 2,020,811,503.84/71,444.56
  6. Step 6: Final answer
    x = 28,285.03

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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.