Home / 87,698.36-131,547.54-28,540.04

Finding the Fourth Proportional to 87,698.36, 131,547.54 and 28,540.04

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Solution

The fourth proportional to 87,698.36, 131,547.54 and 28,540.04 is: 42,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,698.36 : 131,547.54 = 28,540.04 : x
  2. Step 2: Convert to fraction form
    87,698.36/131,547.54 = 28,540.04/x
  3. Step 3: Cross multiply
    87,698.36x = 131,547.54 × 28,540.04
  4. Step 4: Simplify right side
    87,698.36x = 3,754,372,053.50
  5. Step 5: Solve for x
    x = 3,754,372,053.50/87,698.36
  6. Step 6: Final answer
    x = 42,810.06

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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.