Home / 78,280.39-117,426.93-22,120.96

Finding the Fourth Proportional to 78,280.39, 117,426.93 and 22,120.96

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Solution

The fourth proportional to 78,280.39, 117,426.93 and 22,120.96 is: 33,183.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,280.39 : 117,426.93 = 22,120.96 : x
  2. Step 2: Convert to fraction form
    78,280.39/117,426.93 = 22,120.96/x
  3. Step 3: Cross multiply
    78,280.39x = 117,426.93 × 22,120.96
  4. Step 4: Simplify right side
    78,280.39x = 2,597,596,421.45
  5. Step 5: Solve for x
    x = 2,597,596,421.45/78,280.39
  6. Step 6: Final answer
    x = 33,183.23

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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.