Home / 57,103.39-78,838.55-35,913.79

Finding the Fourth Proportional to 57,103.39, 78,838.55 and 35,913.79

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Solution

The fourth proportional to 57,103.39, 78,838.55 and 35,913.79 is: 49,583.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,103.39 : 78,838.55 = 35,913.79 : x
  2. Step 2: Convert to fraction form
    57,103.39/78,838.55 = 35,913.79/x
  3. Step 3: Cross multiply
    57,103.39x = 78,838.55 × 35,913.79
  4. Step 4: Simplify right side
    57,103.39x = 2,831,391,128.60
  5. Step 5: Solve for x
    x = 2,831,391,128.60/57,103.39
  6. Step 6: Final answer
    x = 49,583.59

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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.