Home / 47,378.88-71,075.34-15,778.62

Finding the Fourth Proportional to 47,378.88, 71,075.34 and 15,778.62

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Solution

The fourth proportional to 47,378.88, 71,075.34 and 15,778.62 is: 23,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,378.88 : 71,075.34 = 15,778.62 : x
  2. Step 2: Convert to fraction form
    47,378.88/71,075.34 = 15,778.62/x
  3. Step 3: Cross multiply
    47,378.88x = 71,075.34 × 15,778.62
  4. Step 4: Simplify right side
    47,378.88x = 1,121,470,781.23
  5. Step 5: Solve for x
    x = 1,121,470,781.23/47,378.88
  6. Step 6: Final answer
    x = 23,670.27

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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.