Home / 79,200.09-109,296.13-43,390.19

Finding the Fourth Proportional to 79,200.09, 109,296.13 and 43,390.19

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Solution

The fourth proportional to 79,200.09, 109,296.13 and 43,390.19 is: 59,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,200.09 : 109,296.13 = 43,390.19 : x
  2. Step 2: Convert to fraction form
    79,200.09/109,296.13 = 43,390.19/x
  3. Step 3: Cross multiply
    79,200.09x = 109,296.13 × 43,390.19
  4. Step 4: Simplify right side
    79,200.09x = 4,742,379,846.96
  5. Step 5: Solve for x
    x = 4,742,379,846.96/79,200.09
  6. Step 6: Final answer
    x = 59,878.47

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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.