Home / 86,015.28-129,022.93-26,856.02

Finding the Fourth Proportional to 86,015.28, 129,022.93 and 26,856.02

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Solution

The fourth proportional to 86,015.28, 129,022.93 and 26,856.02 is: 40,284.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015.28 : 129,022.93 = 26,856.02 : x
  2. Step 2: Convert to fraction form
    86,015.28/129,022.93 = 26,856.02/x
  3. Step 3: Cross multiply
    86,015.28x = 129,022.93 × 26,856.02
  4. Step 4: Simplify right side
    86,015.28x = 3,465,042,744.67
  5. Step 5: Solve for x
    x = 3,465,042,744.67/86,015.28
  6. Step 6: Final answer
    x = 40,284.04

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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.