Home / 75,825.75-104,639.55-42,291.75

Finding the Fourth Proportional to 75,825.75, 104,639.55 and 42,291.75

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Solution

The fourth proportional to 75,825.75, 104,639.55 and 42,291.75 is: 58,362.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,825.75 : 104,639.55 = 42,291.75 : x
  2. Step 2: Convert to fraction form
    75,825.75/104,639.55 = 42,291.75/x
  3. Step 3: Cross multiply
    75,825.75x = 104,639.55 × 42,291.75
  4. Step 4: Simplify right side
    75,825.75x = 4,425,389,688.71
  5. Step 5: Solve for x
    x = 4,425,389,688.71/75,825.75
  6. Step 6: Final answer
    x = 58,362.62

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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.