Home / 88,144.04-121,638.08-47,857

Finding the Fourth Proportional to 88,144.04, 121,638.08 and 47,857

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Solution

The fourth proportional to 88,144.04, 121,638.08 and 47,857 is: 66,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,144.04 : 121,638.08 = 47,857 : x
  2. Step 2: Convert to fraction form
    88,144.04/121,638.08 = 47,857/x
  3. Step 3: Cross multiply
    88,144.04x = 121,638.08 × 47,857
  4. Step 4: Simplify right side
    88,144.04x = 5,821,233,594.56
  5. Step 5: Solve for x
    x = 5,821,233,594.56/88,144.04
  6. Step 6: Final answer
    x = 66,042.28

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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.