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Finding the Fourth Proportional to 52,381.98, 72,286.99 and 28,508.67

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Solution

The fourth proportional to 52,381.98, 72,286.99 and 28,508.67 is: 39,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,381.98 : 72,286.99 = 28,508.67 : x
  2. Step 2: Convert to fraction form
    52,381.98/72,286.99 = 28,508.67/x
  3. Step 3: Cross multiply
    52,381.98x = 72,286.99 × 28,508.67
  4. Step 4: Simplify right side
    52,381.98x = 2,060,805,871.93
  5. Step 5: Solve for x
    x = 2,060,805,871.93/52,381.98
  6. Step 6: Final answer
    x = 39,341.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.