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Finding the Fourth Proportional to 57,522.96, 86,259.74 and 20,071.80

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Solution

The fourth proportional to 57,522.96, 86,259.74 and 20,071.80 is: 30,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,522.96 : 86,259.74 = 20,071.80 : x
  2. Step 2: Convert to fraction form
    57,522.96/86,259.74 = 20,071.80/x
  3. Step 3: Cross multiply
    57,522.96x = 86,259.74 × 20,071.80
  4. Step 4: Simplify right side
    57,522.96x = 1,731,388,148.97
  5. Step 5: Solve for x
    x = 1,731,388,148.97/57,522.96
  6. Step 6: Final answer
    x = 30,099.08

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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.