Home / 79,566.39-119,340.66-20,403.45

Finding the Fourth Proportional to 79,566.39, 119,340.66 and 20,403.45

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Solution

The fourth proportional to 79,566.39, 119,340.66 and 20,403.45 is: 30,602.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,566.39 : 119,340.66 = 20,403.45 : x
  2. Step 2: Convert to fraction form
    79,566.39/119,340.66 = 20,403.45/x
  3. Step 3: Cross multiply
    79,566.39x = 119,340.66 × 20,403.45
  4. Step 4: Simplify right side
    79,566.39x = 2,434,961,189.28
  5. Step 5: Solve for x
    x = 2,434,961,189.28/79,566.39
  6. Step 6: Final answer
    x = 30,602.89

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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.