Home / 65,610.62-98,416.40-28,139.07

Finding the Fourth Proportional to 65,610.62, 98,416.40 and 28,139.07

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Solution

The fourth proportional to 65,610.62, 98,416.40 and 28,139.07 is: 42,208.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,610.62 : 98,416.40 = 28,139.07 : x
  2. Step 2: Convert to fraction form
    65,610.62/98,416.40 = 28,139.07/x
  3. Step 3: Cross multiply
    65,610.62x = 98,416.40 × 28,139.07
  4. Step 4: Simplify right side
    65,610.62x = 2,769,345,828.05
  5. Step 5: Solve for x
    x = 2,769,345,828.05/65,610.62
  6. Step 6: Final answer
    x = 42,208.81

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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.