Home / 75,147.40-103,700.66-43,317.64

Finding the Fourth Proportional to 75,147.40, 103,700.66 and 43,317.64

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Solution

The fourth proportional to 75,147.40, 103,700.66 and 43,317.64 is: 59,776.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,147.40 : 103,700.66 = 43,317.64 : x
  2. Step 2: Convert to fraction form
    75,147.40/103,700.66 = 43,317.64/x
  3. Step 3: Cross multiply
    75,147.40x = 103,700.66 × 43,317.64
  4. Step 4: Simplify right side
    75,147.40x = 4,492,067,857.64
  5. Step 5: Solve for x
    x = 4,492,067,857.64/75,147.40
  6. Step 6: Final answer
    x = 59,776.76

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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.