Home / 45,386.55-68,080.31-13,801.75

Finding the Fourth Proportional to 45,386.55, 68,080.31 and 13,801.75

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Solution

The fourth proportional to 45,386.55, 68,080.31 and 13,801.75 is: 20,702.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,386.55 : 68,080.31 = 13,801.75 : x
  2. Step 2: Convert to fraction form
    45,386.55/68,080.31 = 13,801.75/x
  3. Step 3: Cross multiply
    45,386.55x = 68,080.31 × 13,801.75
  4. Step 4: Simplify right side
    45,386.55x = 939,627,231.09
  5. Step 5: Solve for x
    x = 939,627,231.09/45,386.55
  6. Step 6: Final answer
    x = 20,702.77

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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.