Home / 71,107.64-98,120.18-39,274.64

Finding the Fourth Proportional to 71,107.64, 98,120.18 and 39,274.64

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Solution

The fourth proportional to 71,107.64, 98,120.18 and 39,274.64 is: 54,194.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,107.64 : 98,120.18 = 39,274.64 : x
  2. Step 2: Convert to fraction form
    71,107.64/98,120.18 = 39,274.64/x
  3. Step 3: Cross multiply
    71,107.64x = 98,120.18 × 39,274.64
  4. Step 4: Simplify right side
    71,107.64x = 3,853,634,746.24
  5. Step 5: Solve for x
    x = 3,853,634,746.24/71,107.64
  6. Step 6: Final answer
    x = 54,194.38

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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.