Home / 98,556.49-136,008.09-56,115.04

Finding the Fourth Proportional to 98,556.49, 136,008.09 and 56,115.04

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Solution

The fourth proportional to 98,556.49, 136,008.09 and 56,115.04 is: 77,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,556.49 : 136,008.09 = 56,115.04 : x
  2. Step 2: Convert to fraction form
    98,556.49/136,008.09 = 56,115.04/x
  3. Step 3: Cross multiply
    98,556.49x = 136,008.09 × 56,115.04
  4. Step 4: Simplify right side
    98,556.49x = 7,632,099,410.67
  5. Step 5: Solve for x
    x = 7,632,099,410.67/98,556.49
  6. Step 6: Final answer
    x = 77,438.83

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1.5x scale

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.