Home / 78,522.15-117,783.92-22,362.21

Finding the Fourth Proportional to 78,522.15, 117,783.92 and 22,362.21

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Solution

The fourth proportional to 78,522.15, 117,783.92 and 22,362.21 is: 33,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,522.15 : 117,783.92 = 22,362.21 : x
  2. Step 2: Convert to fraction form
    78,522.15/117,783.92 = 22,362.21/x
  3. Step 3: Cross multiply
    78,522.15x = 117,783.92 × 22,362.21
  4. Step 4: Simplify right side
    78,522.15x = 2,633,908,753.66
  5. Step 5: Solve for x
    x = 2,633,908,753.66/78,522.15
  6. Step 6: Final answer
    x = 33,543.51

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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.