Home / 86,661.46-129,982.20-23,477.86

Finding the Fourth Proportional to 86,661.46, 129,982.20 and 23,477.86

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Solution

The fourth proportional to 86,661.46, 129,982.20 and 23,477.86 is: 35,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,661.46 : 129,982.20 = 23,477.86 : x
  2. Step 2: Convert to fraction form
    86,661.46/129,982.20 = 23,477.86/x
  3. Step 3: Cross multiply
    86,661.46x = 129,982.20 × 23,477.86
  4. Step 4: Simplify right side
    86,661.46x = 3,051,703,894.09
  5. Step 5: Solve for x
    x = 3,051,703,894.09/86,661.46
  6. Step 6: Final answer
    x = 35,214.08

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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.