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Finding the Fourth Proportional to 79,983.56, 110,398.70 and 45,995.78

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Solution

The fourth proportional to 79,983.56, 110,398.70 and 45,995.78 is: 63,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,983.56 : 110,398.70 = 45,995.78 : x
  2. Step 2: Convert to fraction form
    79,983.56/110,398.70 = 45,995.78/x
  3. Step 3: Cross multiply
    79,983.56x = 110,398.70 × 45,995.78
  4. Step 4: Simplify right side
    79,983.56x = 5,077,874,317.49
  5. Step 5: Solve for x
    x = 5,077,874,317.49/79,983.56
  6. Step 6: Final answer
    x = 63,486.48

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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.