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Finding the Fourth Proportional to 65,244.63, 97,873.97 and 20,855.55

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Solution

The fourth proportional to 65,244.63, 97,873.97 and 20,855.55 is: 31,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,244.63 : 97,873.97 = 20,855.55 : x
  2. Step 2: Convert to fraction form
    65,244.63/97,873.97 = 20,855.55/x
  3. Step 3: Cross multiply
    65,244.63x = 97,873.97 × 20,855.55
  4. Step 4: Simplify right side
    65,244.63x = 2,041,215,370.76
  5. Step 5: Solve for x
    x = 2,041,215,370.76/65,244.63
  6. Step 6: Final answer
    x = 31,285.57

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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.