Home / 79,187.42-109,281.66-45,201.44

Finding the Fourth Proportional to 79,187.42, 109,281.66 and 45,201.44

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Solution

The fourth proportional to 79,187.42, 109,281.66 and 45,201.44 is: 62,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,187.42 : 109,281.66 = 45,201.44 : x
  2. Step 2: Convert to fraction form
    79,187.42/109,281.66 = 45,201.44/x
  3. Step 3: Cross multiply
    79,187.42x = 109,281.66 × 45,201.44
  4. Step 4: Simplify right side
    79,187.42x = 4,939,688,501.29
  5. Step 5: Solve for x
    x = 4,939,688,501.29/79,187.42
  6. Step 6: Final answer
    x = 62,379.71

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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.