Home / 76,660.26-105,777.99-70,459.33

Finding the Fourth Proportional to 76,660.26, 105,777.99 and 70,459.33

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Solution

The fourth proportional to 76,660.26, 105,777.99 and 70,459.33 is: 97,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,660.26 : 105,777.99 = 70,459.33 : x
  2. Step 2: Convert to fraction form
    76,660.26/105,777.99 = 70,459.33/x
  3. Step 3: Cross multiply
    76,660.26x = 105,777.99 × 70,459.33
  4. Step 4: Simplify right side
    76,660.26x = 7,453,046,304.15
  5. Step 5: Solve for x
    x = 7,453,046,304.15/76,660.26
  6. Step 6: Final answer
    x = 97,221.77

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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.