Home / 45,555.77-68,336.90-14,390.75

Finding the Fourth Proportional to 45,555.77, 68,336.90 and 14,390.75

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Solution

The fourth proportional to 45,555.77, 68,336.90 and 14,390.75 is: 21,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,555.77 : 68,336.90 = 14,390.75 : x
  2. Step 2: Convert to fraction form
    45,555.77/68,336.90 = 14,390.75/x
  3. Step 3: Cross multiply
    45,555.77x = 68,336.90 × 14,390.75
  4. Step 4: Simplify right side
    45,555.77x = 983,419,243.68
  5. Step 5: Solve for x
    x = 983,419,243.68/45,555.77
  6. Step 6: Final answer
    x = 21,587.15

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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.