Home / 70,481.03-105,719.52-26,106.80

Finding the Fourth Proportional to 70,481.03, 105,719.52 and 26,106.80

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Solution

The fourth proportional to 70,481.03, 105,719.52 and 26,106.80 is: 39,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,481.03 : 105,719.52 = 26,106.80 : x
  2. Step 2: Convert to fraction form
    70,481.03/105,719.52 = 26,106.80/x
  3. Step 3: Cross multiply
    70,481.03x = 105,719.52 × 26,106.80
  4. Step 4: Simplify right side
    70,481.03x = 2,759,998,364.74
  5. Step 5: Solve for x
    x = 2,759,998,364.74/70,481.03
  6. Step 6: Final answer
    x = 39,159.45

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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.