Home / 78,276.24-117,392.76-22,111.92

Finding the Fourth Proportional to 78,276.24, 117,392.76 and 22,111.92

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Solution

The fourth proportional to 78,276.24, 117,392.76 and 22,111.92 is: 33,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,276.24 : 117,392.76 = 22,111.92 : x
  2. Step 2: Convert to fraction form
    78,276.24/117,392.76 = 22,111.92/x
  3. Step 3: Cross multiply
    78,276.24x = 117,392.76 × 22,111.92
  4. Step 4: Simplify right side
    78,276.24x = 2,595,779,317.70
  5. Step 5: Solve for x
    x = 2,595,779,317.70/78,276.24
  6. Step 6: Final answer
    x = 33,161.78

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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.