Home / 86,511.71-119,365.78-52,519.34

Finding the Fourth Proportional to 86,511.71, 119,365.78 and 52,519.34

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Solution

The fourth proportional to 86,511.71, 119,365.78 and 52,519.34 is: 72,464.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,511.71 : 119,365.78 = 52,519.34 : x
  2. Step 2: Convert to fraction form
    86,511.71/119,365.78 = 52,519.34/x
  3. Step 3: Cross multiply
    86,511.71x = 119,365.78 × 52,519.34
  4. Step 4: Simplify right side
    86,511.71x = 6,269,011,984.19
  5. Step 5: Solve for x
    x = 6,269,011,984.19/86,511.71
  6. Step 6: Final answer
    x = 72,464.32

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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.