Home / 65,339.65-98,015.55-20,361.36

Finding the Fourth Proportional to 65,339.65, 98,015.55 and 20,361.36

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Solution

The fourth proportional to 65,339.65, 98,015.55 and 20,361.36 is: 30,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,339.65 : 98,015.55 = 20,361.36 : x
  2. Step 2: Convert to fraction form
    65,339.65/98,015.55 = 20,361.36/x
  3. Step 3: Cross multiply
    65,339.65x = 98,015.55 × 20,361.36
  4. Step 4: Simplify right side
    65,339.65x = 1,995,729,899.15
  5. Step 5: Solve for x
    x = 1,995,729,899.15/65,339.65
  6. Step 6: Final answer
    x = 30,543.93

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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.