Home / 45,354.52-68,031.69-12,074.59

Finding the Fourth Proportional to 45,354.52, 68,031.69 and 12,074.59

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Solution

The fourth proportional to 45,354.52, 68,031.69 and 12,074.59 is: 18,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,354.52 : 68,031.69 = 12,074.59 : x
  2. Step 2: Convert to fraction form
    45,354.52/68,031.69 = 12,074.59/x
  3. Step 3: Cross multiply
    45,354.52x = 68,031.69 × 12,074.59
  4. Step 4: Simplify right side
    45,354.52x = 821,454,763.76
  5. Step 5: Solve for x
    x = 821,454,763.76/45,354.52
  6. Step 6: Final answer
    x = 18,111.86

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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.