Home / 65,632.86-98,428.56-21,249.36

Finding the Fourth Proportional to 65,632.86, 98,428.56 and 21,249.36

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Solution

The fourth proportional to 65,632.86, 98,428.56 and 21,249.36 is: 31,867.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,632.86 : 98,428.56 = 21,249.36 : x
  2. Step 2: Convert to fraction form
    65,632.86/98,428.56 = 21,249.36/x
  3. Step 3: Cross multiply
    65,632.86x = 98,428.56 × 21,249.36
  4. Step 4: Simplify right side
    65,632.86x = 2,091,543,905.72
  5. Step 5: Solve for x
    x = 2,091,543,905.72/65,632.86
  6. Step 6: Final answer
    x = 31,867.33

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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.