Home / 78,759.27-118,113.12-26,154.63

Finding the Fourth Proportional to 78,759.27, 118,113.12 and 26,154.63

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Solution

The fourth proportional to 78,759.27, 118,113.12 and 26,154.63 is: 39,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,759.27 : 118,113.12 = 26,154.63 : x
  2. Step 2: Convert to fraction form
    78,759.27/118,113.12 = 26,154.63/x
  3. Step 3: Cross multiply
    78,759.27x = 118,113.12 × 26,154.63
  4. Step 4: Simplify right side
    78,759.27x = 3,089,204,951.75
  5. Step 5: Solve for x
    x = 3,089,204,951.75/78,759.27
  6. Step 6: Final answer
    x = 39,223.38

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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.