Home / 57,157.79-78,916.26-35,680.23

Finding the Fourth Proportional to 57,157.79, 78,916.26 and 35,680.23

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Solution

The fourth proportional to 57,157.79, 78,916.26 and 35,680.23 is: 49,262.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,157.79 : 78,916.26 = 35,680.23 : x
  2. Step 2: Convert to fraction form
    57,157.79/78,916.26 = 35,680.23/x
  3. Step 3: Cross multiply
    57,157.79x = 78,916.26 × 35,680.23
  4. Step 4: Simplify right side
    57,157.79x = 2,815,750,307.54
  5. Step 5: Solve for x
    x = 2,815,750,307.54/57,157.79
  6. Step 6: Final answer
    x = 49,262.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.