Home / 45,391.56-68,087.80-13,806.74

Finding the Fourth Proportional to 45,391.56, 68,087.80 and 13,806.74

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Solution

The fourth proportional to 45,391.56, 68,087.80 and 13,806.74 is: 20,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,391.56 : 68,087.80 = 13,806.74 : x
  2. Step 2: Convert to fraction form
    45,391.56/68,087.80 = 13,806.74/x
  3. Step 3: Cross multiply
    45,391.56x = 68,087.80 × 13,806.74
  4. Step 4: Simplify right side
    45,391.56x = 940,070,551.77
  5. Step 5: Solve for x
    x = 940,070,551.77/45,391.56
  6. Step 6: Final answer
    x = 20,710.25

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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.