Home / 75,157.04-103,693.20-43,321.64

Finding the Fourth Proportional to 75,157.04, 103,693.20 and 43,321.64

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Solution

The fourth proportional to 75,157.04, 103,693.20 and 43,321.64 is: 59,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,157.04 : 103,693.20 = 43,321.64 : x
  2. Step 2: Convert to fraction form
    75,157.04/103,693.20 = 43,321.64/x
  3. Step 3: Cross multiply
    75,157.04x = 103,693.20 × 43,321.64
  4. Step 4: Simplify right side
    75,157.04x = 4,492,159,480.85
  5. Step 5: Solve for x
    x = 4,492,159,480.85/75,157.04
  6. Step 6: Final answer
    x = 59,770.31

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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.