Home / 80,968.72-111,731.78-44,670.63

Finding the Fourth Proportional to 80,968.72, 111,731.78 and 44,670.63

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Solution

The fourth proportional to 80,968.72, 111,731.78 and 44,670.63 is: 61,642.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,968.72 : 111,731.78 = 44,670.63 : x
  2. Step 2: Convert to fraction form
    80,968.72/111,731.78 = 44,670.63/x
  3. Step 3: Cross multiply
    80,968.72x = 111,731.78 × 44,670.63
  4. Step 4: Simplify right side
    80,968.72x = 4,991,128,780.27
  5. Step 5: Solve for x
    x = 4,991,128,780.27/80,968.72
  6. Step 6: Final answer
    x = 61,642.68

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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.