Home / 74,556.76-102,889.56-40,565.92

Finding the Fourth Proportional to 74,556.76, 102,889.56 and 40,565.92

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Solution

The fourth proportional to 74,556.76, 102,889.56 and 40,565.92 is: 55,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,556.76 : 102,889.56 = 40,565.92 : x
  2. Step 2: Convert to fraction form
    74,556.76/102,889.56 = 40,565.92/x
  3. Step 3: Cross multiply
    74,556.76x = 102,889.56 × 40,565.92
  4. Step 4: Simplify right side
    74,556.76x = 4,173,809,659.80
  5. Step 5: Solve for x
    x = 4,173,809,659.80/74,556.76
  6. Step 6: Final answer
    x = 55,981.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.