Home / 45,420.39-68,141.49-14,255.64

Finding the Fourth Proportional to 45,420.39, 68,141.49 and 14,255.64

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Solution

The fourth proportional to 45,420.39, 68,141.49 and 14,255.64 is: 21,386.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.39 : 68,141.49 = 14,255.64 : x
  2. Step 2: Convert to fraction form
    45,420.39/68,141.49 = 14,255.64/x
  3. Step 3: Cross multiply
    45,420.39x = 68,141.49 × 14,255.64
  4. Step 4: Simplify right side
    45,420.39x = 971,400,550.50
  5. Step 5: Solve for x
    x = 971,400,550.50/45,420.39
  6. Step 6: Final answer
    x = 21,386.88

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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.