Home / 98,972.43-136,578.30-53,649.44

Finding the Fourth Proportional to 98,972.43, 136,578.30 and 53,649.44

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Solution

The fourth proportional to 98,972.43, 136,578.30 and 53,649.44 is: 74,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,972.43 : 136,578.30 = 53,649.44 : x
  2. Step 2: Convert to fraction form
    98,972.43/136,578.30 = 53,649.44/x
  3. Step 3: Cross multiply
    98,972.43x = 136,578.30 × 53,649.44
  4. Step 4: Simplify right side
    98,972.43x = 7,327,348,628.26
  5. Step 5: Solve for x
    x = 7,327,348,628.26/98,972.43
  6. Step 6: Final answer
    x = 74,034.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.