Home / 86,120.04-129,165.48-23,790.54

Finding the Fourth Proportional to 86,120.04, 129,165.48 and 23,790.54

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Solution

The fourth proportional to 86,120.04, 129,165.48 and 23,790.54 is: 35,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,120.04 : 129,165.48 = 23,790.54 : x
  2. Step 2: Convert to fraction form
    86,120.04/129,165.48 = 23,790.54/x
  3. Step 3: Cross multiply
    86,120.04x = 129,165.48 × 23,790.54
  4. Step 4: Simplify right side
    86,120.04x = 3,072,916,518.56
  5. Step 5: Solve for x
    x = 3,072,916,518.56/86,120.04
  6. Step 6: Final answer
    x = 35,681.78

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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.