Home / 78,560.28-117,818.82-53,595.54

Finding the Fourth Proportional to 78,560.28, 117,818.82 and 53,595.54

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Solution

The fourth proportional to 78,560.28, 117,818.82 and 53,595.54 is: 80,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,560.28 : 117,818.82 = 53,595.54 : x
  2. Step 2: Convert to fraction form
    78,560.28/117,818.82 = 53,595.54/x
  3. Step 3: Cross multiply
    78,560.28x = 117,818.82 × 53,595.54
  4. Step 4: Simplify right side
    78,560.28x = 6,314,563,280.06
  5. Step 5: Solve for x
    x = 6,314,563,280.06/78,560.28
  6. Step 6: Final answer
    x = 80,378.57

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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.