Home / 78,194.34-117,290.48-19,030.05

Finding the Fourth Proportional to 78,194.34, 117,290.48 and 19,030.05

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Solution

The fourth proportional to 78,194.34, 117,290.48 and 19,030.05 is: 28,544.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,194.34 : 117,290.48 = 19,030.05 : x
  2. Step 2: Convert to fraction form
    78,194.34/117,290.48 = 19,030.05/x
  3. Step 3: Cross multiply
    78,194.34x = 117,290.48 × 19,030.05
  4. Step 4: Simplify right side
    78,194.34x = 2,232,043,603.77
  5. Step 5: Solve for x
    x = 2,232,043,603.77/78,194.34
  6. Step 6: Final answer
    x = 28,544.82

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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.