Home / 45,505.13-68,257.69-12,673.13

Finding the Fourth Proportional to 45,505.13, 68,257.69 and 12,673.13

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Solution

The fourth proportional to 45,505.13, 68,257.69 and 12,673.13 is: 19,009.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,505.13 : 68,257.69 = 12,673.13 : x
  2. Step 2: Convert to fraction form
    45,505.13/68,257.69 = 12,673.13/x
  3. Step 3: Cross multiply
    45,505.13x = 68,257.69 × 12,673.13
  4. Step 4: Simplify right side
    45,505.13x = 865,038,205.90
  5. Step 5: Solve for x
    x = 865,038,205.90/45,505.13
  6. Step 6: Final answer
    x = 19,009.69

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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.