Home / 79,212.47-109,311.48-43,401.69

Finding the Fourth Proportional to 79,212.47, 109,311.48 and 43,401.69

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Solution

The fourth proportional to 79,212.47, 109,311.48 and 43,401.69 is: 59,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,212.47 : 109,311.48 = 43,401.69 : x
  2. Step 2: Convert to fraction form
    79,212.47/109,311.48 = 43,401.69/x
  3. Step 3: Cross multiply
    79,212.47x = 109,311.48 × 43,401.69
  4. Step 4: Simplify right side
    79,212.47x = 4,744,302,968.40
  5. Step 5: Solve for x
    x = 4,744,302,968.40/79,212.47
  6. Step 6: Final answer
    x = 59,893.39

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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.