Home / 86,982.30-130,435.46-30,803.74

Finding the Fourth Proportional to 86,982.30, 130,435.46 and 30,803.74

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Solution

The fourth proportional to 86,982.30, 130,435.46 and 30,803.74 is: 46,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,982.30 : 130,435.46 = 30,803.74 : x
  2. Step 2: Convert to fraction form
    86,982.30/130,435.46 = 30,803.74/x
  3. Step 3: Cross multiply
    86,982.30x = 130,435.46 × 30,803.74
  4. Step 4: Simplify right side
    86,982.30x = 4,017,899,996.62
  5. Step 5: Solve for x
    x = 4,017,899,996.62/86,982.30
  6. Step 6: Final answer
    x = 46,192.16

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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.