Home / 45,431.12-62,680.34-27,520.40

Finding the Fourth Proportional to 45,431.12, 62,680.34 and 27,520.40

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Solution

The fourth proportional to 45,431.12, 62,680.34 and 27,520.40 is: 37,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,431.12 : 62,680.34 = 27,520.40 : x
  2. Step 2: Convert to fraction form
    45,431.12/62,680.34 = 27,520.40/x
  3. Step 3: Cross multiply
    45,431.12x = 62,680.34 × 27,520.40
  4. Step 4: Simplify right side
    45,431.12x = 1,724,988,028.94
  5. Step 5: Solve for x
    x = 1,724,988,028.94/45,431.12
  6. Step 6: Final answer
    x = 37,969.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.