Home / 75,153.51-103,688.37-43,318.08

Finding the Fourth Proportional to 75,153.51, 103,688.37 and 43,318.08

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Solution

The fourth proportional to 75,153.51, 103,688.37 and 43,318.08 is: 59,765.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,153.51 : 103,688.37 = 43,318.08 : x
  2. Step 2: Convert to fraction form
    75,153.51/103,688.37 = 43,318.08/x
  3. Step 3: Cross multiply
    75,153.51x = 103,688.37 × 43,318.08
  4. Step 4: Simplify right side
    75,153.51x = 4,491,581,106.73
  5. Step 5: Solve for x
    x = 4,491,581,106.73/75,153.51
  6. Step 6: Final answer
    x = 59,765.42

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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.