Home / 84,720.28-126,880.04-73,566.35

Finding the Fourth Proportional to 84,720.28, 126,880.04 and 73,566.35

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Solution

The fourth proportional to 84,720.28, 126,880.04 and 73,566.35 is: 110,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.28 : 126,880.04 = 73,566.35 : x
  2. Step 2: Convert to fraction form
    84,720.28/126,880.04 = 73,566.35/x
  3. Step 3: Cross multiply
    84,720.28x = 126,880.04 × 73,566.35
  4. Step 4: Simplify right side
    84,720.28x = 9,334,100,428.42
  5. Step 5: Solve for x
    x = 9,334,100,428.42/84,720.28
  6. Step 6: Final answer
    x = 110,175.52

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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.