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Finding the Fourth Proportional to 79,238.93, 118,857.48 and 19,267.74

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Solution

The fourth proportional to 79,238.93, 118,857.48 and 19,267.74 is: 28,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,238.93 : 118,857.48 = 19,267.74 : x
  2. Step 2: Convert to fraction form
    79,238.93/118,857.48 = 19,267.74/x
  3. Step 3: Cross multiply
    79,238.93x = 118,857.48 × 19,267.74
  4. Step 4: Simplify right side
    79,238.93x = 2,290,115,021.70
  5. Step 5: Solve for x
    x = 2,290,115,021.70/79,238.93
  6. Step 6: Final answer
    x = 28,901.39

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1.5x scale

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.