Home / 43,442.72-65,156.40-12,277.28

Finding the Fourth Proportional to 43,442.72, 65,156.40 and 12,277.28

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Solution

The fourth proportional to 43,442.72, 65,156.40 and 12,277.28 is: 18,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,442.72 : 65,156.40 = 12,277.28 : x
  2. Step 2: Convert to fraction form
    43,442.72/65,156.40 = 12,277.28/x
  3. Step 3: Cross multiply
    43,442.72x = 65,156.40 × 12,277.28
  4. Step 4: Simplify right side
    43,442.72x = 799,943,366.59
  5. Step 5: Solve for x
    x = 799,943,366.59/43,442.72
  6. Step 6: Final answer
    x = 18,413.75

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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.