Home / 78,792.15-118,170.20-22,631.82

Finding the Fourth Proportional to 78,792.15, 118,170.20 and 22,631.82

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Solution

The fourth proportional to 78,792.15, 118,170.20 and 22,631.82 is: 33,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,792.15 : 118,170.20 = 22,631.82 : x
  2. Step 2: Convert to fraction form
    78,792.15/118,170.20 = 22,631.82/x
  3. Step 3: Cross multiply
    78,792.15x = 118,170.20 × 22,631.82
  4. Step 4: Simplify right side
    78,792.15x = 2,674,406,582.60
  5. Step 5: Solve for x
    x = 2,674,406,582.60/78,792.15
  6. Step 6: Final answer
    x = 33,942.55

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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.