Home / 65,739.82-98,547.31-21,335.52

Finding the Fourth Proportional to 65,739.82, 98,547.31 and 21,335.52

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Solution

The fourth proportional to 65,739.82, 98,547.31 and 21,335.52 is: 31,983.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,739.82 : 98,547.31 = 21,335.52 : x
  2. Step 2: Convert to fraction form
    65,739.82/98,547.31 = 21,335.52/x
  3. Step 3: Cross multiply
    65,739.82x = 98,547.31 × 21,335.52
  4. Step 4: Simplify right side
    65,739.82x = 2,102,558,103.45
  5. Step 5: Solve for x
    x = 2,102,558,103.45/65,739.82
  6. Step 6: Final answer
    x = 31,983.02

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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.