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Finding the Fourth Proportional to 52,212.49, 72,053.30 and 28,339.17

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Solution

The fourth proportional to 52,212.49, 72,053.30 and 28,339.17 is: 39,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,212.49 : 72,053.30 = 28,339.17 : x
  2. Step 2: Convert to fraction form
    52,212.49/72,053.30 = 28,339.17/x
  3. Step 3: Cross multiply
    52,212.49x = 72,053.30 × 28,339.17
  4. Step 4: Simplify right side
    52,212.49x = 2,041,930,576.07
  5. Step 5: Solve for x
    x = 2,041,930,576.07/52,212.49
  6. Step 6: Final answer
    x = 39,108.09

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