Home / 75,432-113,162.58-28,681.23

Finding the Fourth Proportional to 75,432, 113,162.58 and 28,681.23

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Solution

The fourth proportional to 75,432, 113,162.58 and 28,681.23 is: 43,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,432 : 113,162.58 = 28,681.23 : x
  2. Step 2: Convert to fraction form
    75,432/113,162.58 = 28,681.23/x
  3. Step 3: Cross multiply
    75,432x = 113,162.58 × 28,681.23
  4. Step 4: Simplify right side
    75,432x = 3,245,641,984.37
  5. Step 5: Solve for x
    x = 3,245,641,984.37/75,432
  6. Step 6: Final answer
    x = 43,027.39

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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.