Home / 45,101.07-67,658.09-13,938.75

Finding the Fourth Proportional to 45,101.07, 67,658.09 and 13,938.75

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Solution

The fourth proportional to 45,101.07, 67,658.09 and 13,938.75 is: 20,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,101.07 : 67,658.09 = 13,938.75 : x
  2. Step 2: Convert to fraction form
    45,101.07/67,658.09 = 13,938.75/x
  3. Step 3: Cross multiply
    45,101.07x = 67,658.09 × 13,938.75
  4. Step 4: Simplify right side
    45,101.07x = 943,069,201.99
  5. Step 5: Solve for x
    x = 943,069,201.99/45,101.07
  6. Step 6: Final answer
    x = 20,910.13

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1.5x scale

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.