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Finding the Fourth Proportional to 84,907.98, 127,354.15 and 28,741.67

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Solution

The fourth proportional to 84,907.98, 127,354.15 and 28,741.67 is: 43,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,907.98 : 127,354.15 = 28,741.67 : x
  2. Step 2: Convert to fraction form
    84,907.98/127,354.15 = 28,741.67/x
  3. Step 3: Cross multiply
    84,907.98x = 127,354.15 × 28,741.67
  4. Step 4: Simplify right side
    84,907.98x = 3,660,370,405.48
  5. Step 5: Solve for x
    x = 3,660,370,405.48/84,907.98
  6. Step 6: Final answer
    x = 43,109.85

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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.