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Finding the Fourth Proportional to 79,980.41, 110,387.14 and 45,986.23

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Solution

The fourth proportional to 79,980.41, 110,387.14 and 45,986.23 is: 63,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,980.41 : 110,387.14 = 45,986.23 : x
  2. Step 2: Convert to fraction form
    79,980.41/110,387.14 = 45,986.23/x
  3. Step 3: Cross multiply
    79,980.41x = 110,387.14 × 45,986.23
  4. Step 4: Simplify right side
    79,980.41x = 5,076,288,432.10
  5. Step 5: Solve for x
    x = 5,076,288,432.10/79,980.41
  6. Step 6: Final answer
    x = 63,469.15

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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.