Home / 78,551.28-118,023.75-73,827.36

Finding the Fourth Proportional to 78,551.28, 118,023.75 and 73,827.36

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Solution

The fourth proportional to 78,551.28, 118,023.75 and 73,827.36 is: 110,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,551.28 : 118,023.75 = 73,827.36 : x
  2. Step 2: Convert to fraction form
    78,551.28/118,023.75 = 73,827.36/x
  3. Step 3: Cross multiply
    78,551.28x = 118,023.75 × 73,827.36
  4. Step 4: Simplify right side
    78,551.28x = 8,713,381,879.80
  5. Step 5: Solve for x
    x = 8,713,381,879.80/78,551.28
  6. Step 6: Final answer
    x = 110,926.03

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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.