Home / 75,448.05-113,172.05-19,288.28

Finding the Fourth Proportional to 75,448.05, 113,172.05 and 19,288.28

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Solution

The fourth proportional to 75,448.05, 113,172.05 and 19,288.28 is: 28,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,448.05 : 113,172.05 = 19,288.28 : x
  2. Step 2: Convert to fraction form
    75,448.05/113,172.05 = 19,288.28/x
  3. Step 3: Cross multiply
    75,448.05x = 113,172.05 × 19,288.28
  4. Step 4: Simplify right side
    75,448.05x = 2,182,893,526.27
  5. Step 5: Solve for x
    x = 2,182,893,526.27/75,448.05
  6. Step 6: Final answer
    x = 28,932.40

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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.