Home / 45,332.20-68,009.10-21,939.40

Finding the Fourth Proportional to 45,332.20, 68,009.10 and 21,939.40

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Solution

The fourth proportional to 45,332.20, 68,009.10 and 21,939.40 is: 32,914.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,332.20 : 68,009.10 = 21,939.40 : x
  2. Step 2: Convert to fraction form
    45,332.20/68,009.10 = 21,939.40/x
  3. Step 3: Cross multiply
    45,332.20x = 68,009.10 × 21,939.40
  4. Step 4: Simplify right side
    45,332.20x = 1,492,078,848.54
  5. Step 5: Solve for x
    x = 1,492,078,848.54/45,332.20
  6. Step 6: Final answer
    x = 32,914.33

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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.