Home / 75,345.14-113,019.40-19,185.04

Finding the Fourth Proportional to 75,345.14, 113,019.40 and 19,185.04

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Solution

The fourth proportional to 75,345.14, 113,019.40 and 19,185.04 is: 28,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,345.14 : 113,019.40 = 19,185.04 : x
  2. Step 2: Convert to fraction form
    75,345.14/113,019.40 = 19,185.04/x
  3. Step 3: Cross multiply
    75,345.14x = 113,019.40 × 19,185.04
  4. Step 4: Simplify right side
    75,345.14x = 2,168,281,709.78
  5. Step 5: Solve for x
    x = 2,168,281,709.78/75,345.14
  6. Step 6: Final answer
    x = 28,777.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.