Home / 79,055.75-118,393.61-45,219.18

Finding the Fourth Proportional to 79,055.75, 118,393.61 and 45,219.18

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Solution

The fourth proportional to 79,055.75, 118,393.61 and 45,219.18 is: 67,720.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,055.75 : 118,393.61 = 45,219.18 : x
  2. Step 2: Convert to fraction form
    79,055.75/118,393.61 = 45,219.18/x
  3. Step 3: Cross multiply
    79,055.75x = 118,393.61 × 45,219.18
  4. Step 4: Simplify right side
    79,055.75x = 5,353,661,735.34
  5. Step 5: Solve for x
    x = 5,353,661,735.34/79,055.75
  6. Step 6: Final answer
    x = 67,720.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.