Home / 99,021.56-136,659.66-56,586.44

Finding the Fourth Proportional to 99,021.56, 136,659.66 and 56,586.44

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Solution

The fourth proportional to 99,021.56, 136,659.66 and 56,586.44 is: 78,094.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,021.56 : 136,659.66 = 56,586.44 : x
  2. Step 2: Convert to fraction form
    99,021.56/136,659.66 = 56,586.44/x
  3. Step 3: Cross multiply
    99,021.56x = 136,659.66 × 56,586.44
  4. Step 4: Simplify right side
    99,021.56x = 7,733,083,651.01
  5. Step 5: Solve for x
    x = 7,733,083,651.01/99,021.56
  6. Step 6: Final answer
    x = 78,094.95

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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.