Home / 86,015.65-129,023.48-26,856.39

Finding the Fourth Proportional to 86,015.65, 129,023.48 and 26,856.39

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Solution

The fourth proportional to 86,015.65, 129,023.48 and 26,856.39 is: 40,284.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015.65 : 129,023.48 = 26,856.39 : x
  2. Step 2: Convert to fraction form
    86,015.65/129,023.48 = 26,856.39/x
  3. Step 3: Cross multiply
    86,015.65x = 129,023.48 × 26,856.39
  4. Step 4: Simplify right side
    86,015.65x = 3,465,104,360.38
  5. Step 5: Solve for x
    x = 3,465,104,360.38/86,015.65
  6. Step 6: Final answer
    x = 40,284.58

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Similar ratio
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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.