Home / 93,012.28-128,358.21-50,570.71

Finding the Fourth Proportional to 93,012.28, 128,358.21 and 50,570.71

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Solution

The fourth proportional to 93,012.28, 128,358.21 and 50,570.71 is: 69,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,012.28 : 128,358.21 = 50,570.71 : x
  2. Step 2: Convert to fraction form
    93,012.28/128,358.21 = 50,570.71/x
  3. Step 3: Cross multiply
    93,012.28x = 128,358.21 × 50,570.71
  4. Step 4: Simplify right side
    93,012.28x = 6,491,165,814.03
  5. Step 5: Solve for x
    x = 6,491,165,814.03/93,012.28
  6. Step 6: Final answer
    x = 69,788.27

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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.