Home / 70,719.04-105,988-33,196.20

Finding the Fourth Proportional to 70,719.04, 105,988 and 33,196.20

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Solution

The fourth proportional to 70,719.04, 105,988 and 33,196.20 is: 49,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,719.04 : 105,988 = 33,196.20 : x
  2. Step 2: Convert to fraction form
    70,719.04/105,988 = 33,196.20/x
  3. Step 3: Cross multiply
    70,719.04x = 105,988 × 33,196.20
  4. Step 4: Simplify right side
    70,719.04x = 3,518,398,845.60
  5. Step 5: Solve for x
    x = 3,518,398,845.60/70,719.04
  6. Step 6: Final answer
    x = 49,751.79

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1.5x scale

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.