Home / 45,405.10-68,107.65-14,240.30

Finding the Fourth Proportional to 45,405.10, 68,107.65 and 14,240.30

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Solution

The fourth proportional to 45,405.10, 68,107.65 and 14,240.30 is: 21,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.10 : 68,107.65 = 14,240.30 : x
  2. Step 2: Convert to fraction form
    45,405.10/68,107.65 = 14,240.30/x
  3. Step 3: Cross multiply
    45,405.10x = 68,107.65 × 14,240.30
  4. Step 4: Simplify right side
    45,405.10x = 969,873,368.30
  5. Step 5: Solve for x
    x = 969,873,368.30/45,405.10
  6. Step 6: Final answer
    x = 21,360.45

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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.