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Finding the Fourth Proportional to 47,381.88, 70,992.51 and 28,622.52

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Solution

The fourth proportional to 47,381.88, 70,992.51 and 28,622.52 is: 42,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,381.88 : 70,992.51 = 28,622.52 : x
  2. Step 2: Convert to fraction form
    47,381.88/70,992.51 = 28,622.52/x
  3. Step 3: Cross multiply
    47,381.88x = 70,992.51 × 28,622.52
  4. Step 4: Simplify right side
    47,381.88x = 2,031,984,537.33
  5. Step 5: Solve for x
    x = 2,031,984,537.33/47,381.88
  6. Step 6: Final answer
    x = 42,885.27

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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.