Home / 45,387.64-68,085.09-13,800.53

Finding the Fourth Proportional to 45,387.64, 68,085.09 and 13,800.53

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Solution

The fourth proportional to 45,387.64, 68,085.09 and 13,800.53 is: 20,701.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,387.64 : 68,085.09 = 13,800.53 : x
  2. Step 2: Convert to fraction form
    45,387.64/68,085.09 = 13,800.53/x
  3. Step 3: Cross multiply
    45,387.64x = 68,085.09 × 13,800.53
  4. Step 4: Simplify right side
    45,387.64x = 939,610,114.33
  5. Step 5: Solve for x
    x = 939,610,114.33/45,387.64
  6. Step 6: Final answer
    x = 20,701.89

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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.