Home / 86,805.24-130,218.28-30,633.75

Finding the Fourth Proportional to 86,805.24, 130,218.28 and 30,633.75

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Solution

The fourth proportional to 86,805.24, 130,218.28 and 30,633.75 is: 45,954.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,805.24 : 130,218.28 = 30,633.75 : x
  2. Step 2: Convert to fraction form
    86,805.24/130,218.28 = 30,633.75/x
  3. Step 3: Cross multiply
    86,805.24x = 130,218.28 × 30,633.75
  4. Step 4: Simplify right side
    86,805.24x = 3,989,074,158.37
  5. Step 5: Solve for x
    x = 3,989,074,158.37/86,805.24
  6. Step 6: Final answer
    x = 45,954.30

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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.