Home / 86,990.22-130,505.76-27,015.63

Finding the Fourth Proportional to 86,990.22, 130,505.76 and 27,015.63

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Solution

The fourth proportional to 86,990.22, 130,505.76 and 27,015.63 is: 40,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,990.22 : 130,505.76 = 27,015.63 : x
  2. Step 2: Convert to fraction form
    86,990.22/130,505.76 = 27,015.63/x
  3. Step 3: Cross multiply
    86,990.22x = 130,505.76 × 27,015.63
  4. Step 4: Simplify right side
    86,990.22x = 3,525,695,325.03
  5. Step 5: Solve for x
    x = 3,525,695,325.03/86,990.22
  6. Step 6: Final answer
    x = 40,529.79

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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.