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Finding the Fourth Proportional to 50,751, 70,036.38 and 28,399.32

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Solution

The fourth proportional to 50,751, 70,036.38 and 28,399.32 is: 39,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,751 : 70,036.38 = 28,399.32 : x
  2. Step 2: Convert to fraction form
    50,751/70,036.38 = 28,399.32/x
  3. Step 3: Cross multiply
    50,751x = 70,036.38 × 28,399.32
  4. Step 4: Simplify right side
    50,751x = 1,988,985,567.26
  5. Step 5: Solve for x
    x = 1,988,985,567.26/50,751
  6. Step 6: Final answer
    x = 39,191.06

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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.