Home / 78,224.34-117,335.31-19,060.10

Finding the Fourth Proportional to 78,224.34, 117,335.31 and 19,060.10

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Solution

The fourth proportional to 78,224.34, 117,335.31 and 19,060.10 is: 28,589.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,224.34 : 117,335.31 = 19,060.10 : x
  2. Step 2: Convert to fraction form
    78,224.34/117,335.31 = 19,060.10/x
  3. Step 3: Cross multiply
    78,224.34x = 117,335.31 × 19,060.10
  4. Step 4: Simplify right side
    78,224.34x = 2,236,422,742.13
  5. Step 5: Solve for x
    x = 2,236,422,742.13/78,224.34
  6. Step 6: Final answer
    x = 28,589.86

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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.