Home / 86,636.56-119,555.10-54,388.60

Finding the Fourth Proportional to 86,636.56, 119,555.10 and 54,388.60

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Solution

The fourth proportional to 86,636.56, 119,555.10 and 54,388.60 is: 75,054.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,636.56 : 119,555.10 = 54,388.60 : x
  2. Step 2: Convert to fraction form
    86,636.56/119,555.10 = 54,388.60/x
  3. Step 3: Cross multiply
    86,636.56x = 119,555.10 × 54,388.60
  4. Step 4: Simplify right side
    86,636.56x = 6,502,434,511.86
  5. Step 5: Solve for x
    x = 6,502,434,511.86/86,636.56
  6. Step 6: Final answer
    x = 75,054.16

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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.