Home / 65,782.08-98,689.31-19,039.68

Finding the Fourth Proportional to 65,782.08, 98,689.31 and 19,039.68

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Solution

The fourth proportional to 65,782.08, 98,689.31 and 19,039.68 is: 28,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,782.08 : 98,689.31 = 19,039.68 : x
  2. Step 2: Convert to fraction form
    65,782.08/98,689.31 = 19,039.68/x
  3. Step 3: Cross multiply
    65,782.08x = 98,689.31 × 19,039.68
  4. Step 4: Simplify right side
    65,782.08x = 1,879,012,881.82
  5. Step 5: Solve for x
    x = 1,879,012,881.82/65,782.08
  6. Step 6: Final answer
    x = 28,564.21

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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.