Home / 69,938.78-96,515.53-38,107.68

Finding the Fourth Proportional to 69,938.78, 96,515.53 and 38,107.68

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Solution

The fourth proportional to 69,938.78, 96,515.53 and 38,107.68 is: 52,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,938.78 : 96,515.53 = 38,107.68 : x
  2. Step 2: Convert to fraction form
    69,938.78/96,515.53 = 38,107.68/x
  3. Step 3: Cross multiply
    69,938.78x = 96,515.53 × 38,107.68
  4. Step 4: Simplify right side
    69,938.78x = 3,677,982,741.73
  5. Step 5: Solve for x
    x = 3,677,982,741.73/69,938.78
  6. Step 6: Final answer
    x = 52,588.60

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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.