Home / 45,418.96-68,124.12-14,248.72

Finding the Fourth Proportional to 45,418.96, 68,124.12 and 14,248.72

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Solution

The fourth proportional to 45,418.96, 68,124.12 and 14,248.72 is: 21,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.96 : 68,124.12 = 14,248.72 : x
  2. Step 2: Convert to fraction form
    45,418.96/68,124.12 = 14,248.72/x
  3. Step 3: Cross multiply
    45,418.96x = 68,124.12 × 14,248.72
  4. Step 4: Simplify right side
    45,418.96x = 970,681,511.13
  5. Step 5: Solve for x
    x = 970,681,511.13/45,418.96
  6. Step 6: Final answer
    x = 21,371.72

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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.