Home / 85,139.13-117,495.03-52,891.41

Finding the Fourth Proportional to 85,139.13, 117,495.03 and 52,891.41

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Solution

The fourth proportional to 85,139.13, 117,495.03 and 52,891.41 is: 72,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,139.13 : 117,495.03 = 52,891.41 : x
  2. Step 2: Convert to fraction form
    85,139.13/117,495.03 = 52,891.41/x
  3. Step 3: Cross multiply
    85,139.13x = 117,495.03 × 52,891.41
  4. Step 4: Simplify right side
    85,139.13x = 6,214,477,804.69
  5. Step 5: Solve for x
    x = 6,214,477,804.69/85,139.13
  6. Step 6: Final answer
    x = 72,992.03

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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.