Home / 86,209.08-118,960.83-47,967.36

Finding the Fourth Proportional to 86,209.08, 118,960.83 and 47,967.36

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Solution

The fourth proportional to 86,209.08, 118,960.83 and 47,967.36 is: 66,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,209.08 : 118,960.83 = 47,967.36 : x
  2. Step 2: Convert to fraction form
    86,209.08/118,960.83 = 47,967.36/x
  3. Step 3: Cross multiply
    86,209.08x = 118,960.83 × 47,967.36
  4. Step 4: Simplify right side
    86,209.08x = 5,706,236,958.51
  5. Step 5: Solve for x
    x = 5,706,236,958.51/86,209.08
  6. Step 6: Final answer
    x = 66,190.67

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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.