Home / 57,113.79-78,858.62-45,845.28

Finding the Fourth Proportional to 57,113.79, 78,858.62 and 45,845.28

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Solution

The fourth proportional to 57,113.79, 78,858.62 and 45,845.28 is: 63,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.79 : 78,858.62 = 45,845.28 : x
  2. Step 2: Convert to fraction form
    57,113.79/78,858.62 = 45,845.28/x
  3. Step 3: Cross multiply
    57,113.79x = 78,858.62 × 45,845.28
  4. Step 4: Simplify right side
    57,113.79x = 3,615,295,285.09
  5. Step 5: Solve for x
    x = 3,615,295,285.09/57,113.79
  6. Step 6: Final answer
    x = 63,299.87

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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.