Home / 76,795.36-105,889.78-62,415.84

Finding the Fourth Proportional to 76,795.36, 105,889.78 and 62,415.84

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Solution

The fourth proportional to 76,795.36, 105,889.78 and 62,415.84 is: 86,062.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,795.36 : 105,889.78 = 62,415.84 : x
  2. Step 2: Convert to fraction form
    76,795.36/105,889.78 = 62,415.84/x
  3. Step 3: Cross multiply
    76,795.36x = 105,889.78 × 62,415.84
  4. Step 4: Simplify right side
    76,795.36x = 6,609,199,566.12
  5. Step 5: Solve for x
    x = 6,609,199,566.12/76,795.36
  6. Step 6: Final answer
    x = 86,062.49

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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.