Home / 45,979.83-68,905.95-20,958.72

Finding the Fourth Proportional to 45,979.83, 68,905.95 and 20,958.72

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Solution

The fourth proportional to 45,979.83, 68,905.95 and 20,958.72 is: 31,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,979.83 : 68,905.95 = 20,958.72 : x
  2. Step 2: Convert to fraction form
    45,979.83/68,905.95 = 20,958.72/x
  3. Step 3: Cross multiply
    45,979.83x = 68,905.95 × 20,958.72
  4. Step 4: Simplify right side
    45,979.83x = 1,444,180,512.38
  5. Step 5: Solve for x
    x = 1,444,180,512.38/45,979.83
  6. Step 6: Final answer
    x = 31,409.00

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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.