Home / 45,455.12-68,171.52-14,290.28

Finding the Fourth Proportional to 45,455.12, 68,171.52 and 14,290.28

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Solution

The fourth proportional to 45,455.12, 68,171.52 and 14,290.28 is: 21,431.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,455.12 : 68,171.52 = 14,290.28 : x
  2. Step 2: Convert to fraction form
    45,455.12/68,171.52 = 14,290.28/x
  3. Step 3: Cross multiply
    45,455.12x = 68,171.52 × 14,290.28
  4. Step 4: Simplify right side
    45,455.12x = 974,190,108.83
  5. Step 5: Solve for x
    x = 974,190,108.83/45,455.12
  6. Step 6: Final answer
    x = 21,431.91

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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.