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Finding the Fourth Proportional to 79,730.68, 110,028.90 and 45,740.66

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Solution

The fourth proportional to 79,730.68, 110,028.90 and 45,740.66 is: 63,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,730.68 : 110,028.90 = 45,740.66 : x
  2. Step 2: Convert to fraction form
    79,730.68/110,028.90 = 45,740.66/x
  3. Step 3: Cross multiply
    79,730.68x = 110,028.90 × 45,740.66
  4. Step 4: Simplify right side
    79,730.68x = 5,032,794,505.07
  5. Step 5: Solve for x
    x = 5,032,794,505.07/79,730.68
  6. Step 6: Final answer
    x = 63,122.43

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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.