Home / 78,515.44-117,773.87-22,355.51

Finding the Fourth Proportional to 78,515.44, 117,773.87 and 22,355.51

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Solution

The fourth proportional to 78,515.44, 117,773.87 and 22,355.51 is: 33,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515.44 : 117,773.87 = 22,355.51 : x
  2. Step 2: Convert to fraction form
    78,515.44/117,773.87 = 22,355.51/x
  3. Step 3: Cross multiply
    78,515.44x = 117,773.87 × 22,355.51
  4. Step 4: Simplify right side
    78,515.44x = 2,632,894,689.98
  5. Step 5: Solve for x
    x = 2,632,894,689.98/78,515.44
  6. Step 6: Final answer
    x = 33,533.46

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1.5x scale

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.