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Finding the Fourth Proportional to 45,646.77, 68,404.41 and 19,315.29

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Solution

The fourth proportional to 45,646.77, 68,404.41 and 19,315.29 is: 28,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,646.77 : 68,404.41 = 19,315.29 : x
  2. Step 2: Convert to fraction form
    45,646.77/68,404.41 = 19,315.29/x
  3. Step 3: Cross multiply
    45,646.77x = 68,404.41 × 19,315.29
  4. Step 4: Simplify right side
    45,646.77x = 1,321,251,016.43
  5. Step 5: Solve for x
    x = 1,321,251,016.43/45,646.77
  6. Step 6: Final answer
    x = 28,945.12

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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.