Home / 65,864.19-98,799.80-20,889.09

Finding the Fourth Proportional to 65,864.19, 98,799.80 and 20,889.09

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Solution

The fourth proportional to 65,864.19, 98,799.80 and 20,889.09 is: 31,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,864.19 : 98,799.80 = 20,889.09 : x
  2. Step 2: Convert to fraction form
    65,864.19/98,799.80 = 20,889.09/x
  3. Step 3: Cross multiply
    65,864.19x = 98,799.80 × 20,889.09
  4. Step 4: Simplify right side
    65,864.19x = 2,063,837,809.74
  5. Step 5: Solve for x
    x = 2,063,837,809.74/65,864.19
  6. Step 6: Final answer
    x = 31,334.75

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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.