Home / 86,511.16-119,208.26-63,814.20

Finding the Fourth Proportional to 86,511.16, 119,208.26 and 63,814.20

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Solution

The fourth proportional to 86,511.16, 119,208.26 and 63,814.20 is: 87,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,511.16 : 119,208.26 = 63,814.20 : x
  2. Step 2: Convert to fraction form
    86,511.16/119,208.26 = 63,814.20/x
  3. Step 3: Cross multiply
    86,511.16x = 119,208.26 × 63,814.20
  4. Step 4: Simplify right side
    86,511.16x = 7,607,179,745.29
  5. Step 5: Solve for x
    x = 7,607,179,745.29/86,511.16
  6. Step 6: Final answer
    x = 87,932.93

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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.