Home / 42,917.28-64,393.70-23,172.64

Finding the Fourth Proportional to 42,917.28, 64,393.70 and 23,172.64

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Solution

The fourth proportional to 42,917.28, 64,393.70 and 23,172.64 is: 34,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,917.28 : 64,393.70 = 23,172.64 : x
  2. Step 2: Convert to fraction form
    42,917.28/64,393.70 = 23,172.64/x
  3. Step 3: Cross multiply
    42,917.28x = 64,393.70 × 23,172.64
  4. Step 4: Simplify right side
    42,917.28x = 1,492,172,028.37
  5. Step 5: Solve for x
    x = 1,492,172,028.37/42,917.28
  6. Step 6: Final answer
    x = 34,768.56

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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.