Home / 79,649.10-119,477.97-20,485.26

Finding the Fourth Proportional to 79,649.10, 119,477.97 and 20,485.26

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Solution

The fourth proportional to 79,649.10, 119,477.97 and 20,485.26 is: 30,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,649.10 : 119,477.97 = 20,485.26 : x
  2. Step 2: Convert to fraction form
    79,649.10/119,477.97 = 20,485.26/x
  3. Step 3: Cross multiply
    79,649.10x = 119,477.97 × 20,485.26
  4. Step 4: Simplify right side
    79,649.10x = 2,447,537,279.72
  5. Step 5: Solve for x
    x = 2,447,537,279.72/79,649.10
  6. Step 6: Final answer
    x = 30,729.00

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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.