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Finding the Fourth Proportional to 79,207.69, 109,302.43 and 45,214.82

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Solution

The fourth proportional to 79,207.69, 109,302.43 and 45,214.82 is: 62,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.69 : 109,302.43 = 45,214.82 : x
  2. Step 2: Convert to fraction form
    79,207.69/109,302.43 = 45,214.82/x
  3. Step 3: Cross multiply
    79,207.69x = 109,302.43 × 45,214.82
  4. Step 4: Simplify right side
    79,207.69x = 4,942,089,584.98
  5. Step 5: Solve for x
    x = 4,942,089,584.98/79,207.69
  6. Step 6: Final answer
    x = 62,394.07

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1.5x scale

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.