Home / 79,780.14-110,081.43-47,937.42

Finding the Fourth Proportional to 79,780.14, 110,081.43 and 47,937.42

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Solution

The fourth proportional to 79,780.14, 110,081.43 and 47,937.42 is: 66,144.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,780.14 : 110,081.43 = 47,937.42 : x
  2. Step 2: Convert to fraction form
    79,780.14/110,081.43 = 47,937.42/x
  3. Step 3: Cross multiply
    79,780.14x = 110,081.43 × 47,937.42
  4. Step 4: Simplify right side
    79,780.14x = 5,277,019,744.11
  5. Step 5: Solve for x
    x = 5,277,019,744.11/79,780.14
  6. Step 6: Final answer
    x = 66,144.53

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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.