Home / 78,556.45-117,833.08-19,392.63

Finding the Fourth Proportional to 78,556.45, 117,833.08 and 19,392.63

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Solution

The fourth proportional to 78,556.45, 117,833.08 and 19,392.63 is: 29,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,556.45 : 117,833.08 = 19,392.63 : x
  2. Step 2: Convert to fraction form
    78,556.45/117,833.08 = 19,392.63/x
  3. Step 3: Cross multiply
    78,556.45x = 117,833.08 × 19,392.63
  4. Step 4: Simplify right side
    78,556.45x = 2,285,093,322.20
  5. Step 5: Solve for x
    x = 2,285,093,322.20/78,556.45
  6. Step 6: Final answer
    x = 29,088.55

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1.5x scale

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.