Home / 65,578.32-98,345.52-21,193.08

Finding the Fourth Proportional to 65,578.32, 98,345.52 and 21,193.08

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Solution

The fourth proportional to 65,578.32, 98,345.52 and 21,193.08 is: 31,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,578.32 : 98,345.52 = 21,193.08 : x
  2. Step 2: Convert to fraction form
    65,578.32/98,345.52 = 21,193.08/x
  3. Step 3: Cross multiply
    65,578.32x = 98,345.52 × 21,193.08
  4. Step 4: Simplify right side
    65,578.32x = 2,084,244,473.00
  5. Step 5: Solve for x
    x = 2,084,244,473.00/65,578.32
  6. Step 6: Final answer
    x = 31,782.52

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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.