Home / 93,789.11-129,429.33-51,351.59

Finding the Fourth Proportional to 93,789.11, 129,429.33 and 51,351.59

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Solution

The fourth proportional to 93,789.11, 129,429.33 and 51,351.59 is: 70,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,789.11 : 129,429.33 = 51,351.59 : x
  2. Step 2: Convert to fraction form
    93,789.11/129,429.33 = 51,351.59/x
  3. Step 3: Cross multiply
    93,789.11x = 129,429.33 × 51,351.59
  4. Step 4: Simplify right side
    93,789.11x = 6,646,401,240.99
  5. Step 5: Solve for x
    x = 6,646,401,240.99/93,789.11
  6. Step 6: Final answer
    x = 70,865.39

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1.5x scale

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.