Home / 78,733.96-118,100.85-19,569.63

Finding the Fourth Proportional to 78,733.96, 118,100.85 and 19,569.63

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Solution

The fourth proportional to 78,733.96, 118,100.85 and 19,569.63 is: 29,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733.96 : 118,100.85 = 19,569.63 : x
  2. Step 2: Convert to fraction form
    78,733.96/118,100.85 = 19,569.63/x
  3. Step 3: Cross multiply
    78,733.96x = 118,100.85 × 19,569.63
  4. Step 4: Simplify right side
    78,733.96x = 2,311,190,458.76
  5. Step 5: Solve for x
    x = 2,311,190,458.76/78,733.96
  6. Step 6: Final answer
    x = 29,354.43

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Similar ratio
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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.