Home / 93,453.21-128,965.40-51,011.75

Finding the Fourth Proportional to 93,453.21, 128,965.40 and 51,011.75

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Solution

The fourth proportional to 93,453.21, 128,965.40 and 51,011.75 is: 70,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,453.21 : 128,965.40 = 51,011.75 : x
  2. Step 2: Convert to fraction form
    93,453.21/128,965.40 = 51,011.75/x
  3. Step 3: Cross multiply
    93,453.21x = 128,965.40 × 51,011.75
  4. Step 4: Simplify right side
    93,453.21x = 6,578,749,843.56
  5. Step 5: Solve for x
    x = 6,578,749,843.56/93,453.21
  6. Step 6: Final answer
    x = 70,396.19

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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.