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Finding the Fourth Proportional to 52,764, 72,814.62 and 39,347.16

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Solution

The fourth proportional to 52,764, 72,814.62 and 39,347.16 is: 54,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,764 : 72,814.62 = 39,347.16 : x
  2. Step 2: Convert to fraction form
    52,764/72,814.62 = 39,347.16/x
  3. Step 3: Cross multiply
    52,764x = 72,814.62 × 39,347.16
  4. Step 4: Simplify right side
    52,764x = 2,865,048,503.48
  5. Step 5: Solve for x
    x = 2,865,048,503.48/52,764
  6. Step 6: Final answer
    x = 54,299.30

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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.