Home / 86,990.28-130,507.26-24,660.78

Finding the Fourth Proportional to 86,990.28, 130,507.26 and 24,660.78

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Solution

The fourth proportional to 86,990.28, 130,507.26 and 24,660.78 is: 36,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,990.28 : 130,507.26 = 24,660.78 : x
  2. Step 2: Convert to fraction form
    86,990.28/130,507.26 = 24,660.78/x
  3. Step 3: Cross multiply
    86,990.28x = 130,507.26 × 24,660.78
  4. Step 4: Simplify right side
    86,990.28x = 3,218,410,827.26
  5. Step 5: Solve for x
    x = 3,218,410,827.26/86,990.28
  6. Step 6: Final answer
    x = 36,997.36

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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.