Home / 45,017.16-67,540.32-21,640.56

Finding the Fourth Proportional to 45,017.16, 67,540.32 and 21,640.56

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Solution

The fourth proportional to 45,017.16, 67,540.32 and 21,640.56 is: 32,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,017.16 : 67,540.32 = 21,640.56 : x
  2. Step 2: Convert to fraction form
    45,017.16/67,540.32 = 21,640.56/x
  3. Step 3: Cross multiply
    45,017.16x = 67,540.32 × 21,640.56
  4. Step 4: Simplify right side
    45,017.16x = 1,461,610,347.38
  5. Step 5: Solve for x
    x = 1,461,610,347.38/45,017.16
  6. Step 6: Final answer
    x = 32,467.85

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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.