Home / 79,619.60-119,429.40-54,736.40

Finding the Fourth Proportional to 79,619.60, 119,429.40 and 54,736.40

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Solution

The fourth proportional to 79,619.60, 119,429.40 and 54,736.40 is: 82,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,619.60 : 119,429.40 = 54,736.40 : x
  2. Step 2: Convert to fraction form
    79,619.60/119,429.40 = 54,736.40/x
  3. Step 3: Cross multiply
    79,619.60x = 119,429.40 × 54,736.40
  4. Step 4: Simplify right side
    79,619.60x = 6,537,135,410.16
  5. Step 5: Solve for x
    x = 6,537,135,410.16/79,619.60
  6. Step 6: Final answer
    x = 82,104.60

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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.