Home / 44,378.45-66,557.72-12,781.47

Finding the Fourth Proportional to 44,378.45, 66,557.72 and 12,781.47

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Solution

The fourth proportional to 44,378.45, 66,557.72 and 12,781.47 is: 19,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,378.45 : 66,557.72 = 12,781.47 : x
  2. Step 2: Convert to fraction form
    44,378.45/66,557.72 = 12,781.47/x
  3. Step 3: Cross multiply
    44,378.45x = 66,557.72 × 12,781.47
  4. Step 4: Simplify right side
    44,378.45x = 850,705,533.40
  5. Step 5: Solve for x
    x = 850,705,533.40/44,378.45
  6. Step 6: Final answer
    x = 19,169.34

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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.