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Finding the Fourth Proportional to 79,750.28, 110,057.88 and 45,765

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Solution

The fourth proportional to 79,750.28, 110,057.88 and 45,765 is: 63,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,750.28 : 110,057.88 = 45,765 : x
  2. Step 2: Convert to fraction form
    79,750.28/110,057.88 = 45,765/x
  3. Step 3: Cross multiply
    79,750.28x = 110,057.88 × 45,765
  4. Step 4: Simplify right side
    79,750.28x = 5,036,798,878.20
  5. Step 5: Solve for x
    x = 5,036,798,878.20/79,750.28
  6. Step 6: Final answer
    x = 63,157.13

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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.