Home / 86,775.10-130,182.19-30,619.22

Finding the Fourth Proportional to 86,775.10, 130,182.19 and 30,619.22

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Solution

The fourth proportional to 86,775.10, 130,182.19 and 30,619.22 is: 45,935.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,775.10 : 130,182.19 = 30,619.22 : x
  2. Step 2: Convert to fraction form
    86,775.10/130,182.19 = 30,619.22/x
  3. Step 3: Cross multiply
    86,775.10x = 130,182.19 × 30,619.22
  4. Step 4: Simplify right side
    86,775.10x = 3,986,076,388.23
  5. Step 5: Solve for x
    x = 3,986,076,388.23/86,775.10
  6. Step 6: Final answer
    x = 45,935.72

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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.