Home / 45,511.72-68,259.90-12,235.48

Finding the Fourth Proportional to 45,511.72, 68,259.90 and 12,235.48

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Solution

The fourth proportional to 45,511.72, 68,259.90 and 12,235.48 is: 18,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,511.72 : 68,259.90 = 12,235.48 : x
  2. Step 2: Convert to fraction form
    45,511.72/68,259.90 = 12,235.48/x
  3. Step 3: Cross multiply
    45,511.72x = 68,259.90 × 12,235.48
  4. Step 4: Simplify right side
    45,511.72x = 835,192,641.25
  5. Step 5: Solve for x
    x = 835,192,641.25/45,511.72
  6. Step 6: Final answer
    x = 18,351.16

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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.