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Finding the Fourth Proportional to 50,732.61, 70,005 and 28,068.61

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Solution

The fourth proportional to 50,732.61, 70,005 and 28,068.61 is: 38,731.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,732.61 : 70,005 = 28,068.61 : x
  2. Step 2: Convert to fraction form
    50,732.61/70,005 = 28,068.61/x
  3. Step 3: Cross multiply
    50,732.61x = 70,005 × 28,068.61
  4. Step 4: Simplify right side
    50,732.61x = 1,964,942,868.04
  5. Step 5: Solve for x
    x = 1,964,942,868.04/50,732.61
  6. Step 6: Final answer
    x = 38,731.36

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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.