Home / 45,805.12-68,745.36-19,539.52

Finding the Fourth Proportional to 45,805.12, 68,745.36 and 19,539.52

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Solution

The fourth proportional to 45,805.12, 68,745.36 and 19,539.52 is: 29,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,805.12 : 68,745.36 = 19,539.52 : x
  2. Step 2: Convert to fraction form
    45,805.12/68,745.36 = 19,539.52/x
  3. Step 3: Cross multiply
    45,805.12x = 68,745.36 × 19,539.52
  4. Step 4: Simplify right side
    45,805.12x = 1,343,251,336.63
  5. Step 5: Solve for x
    x = 1,343,251,336.63/45,805.12
  6. Step 6: Final answer
    x = 29,325.35

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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.