Home / 73,986.56-102,108.48-40,457.60

Finding the Fourth Proportional to 73,986.56, 102,108.48 and 40,457.60

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Solution

The fourth proportional to 73,986.56, 102,108.48 and 40,457.60 is: 55,835.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,986.56 : 102,108.48 = 40,457.60 : x
  2. Step 2: Convert to fraction form
    73,986.56/102,108.48 = 40,457.60/x
  3. Step 3: Cross multiply
    73,986.56x = 102,108.48 × 40,457.60
  4. Step 4: Simplify right side
    73,986.56x = 4,131,064,040.45
  5. Step 5: Solve for x
    x = 4,131,064,040.45/73,986.56
  6. Step 6: Final answer
    x = 55,835.33

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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.