Home / 45,973.48-68,925.12-20,996.20

Finding the Fourth Proportional to 45,973.48, 68,925.12 and 20,996.20

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Solution

The fourth proportional to 45,973.48, 68,925.12 and 20,996.20 is: 31,478.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,973.48 : 68,925.12 = 20,996.20 : x
  2. Step 2: Convert to fraction form
    45,973.48/68,925.12 = 20,996.20/x
  3. Step 3: Cross multiply
    45,973.48x = 68,925.12 × 20,996.20
  4. Step 4: Simplify right side
    45,973.48x = 1,447,165,604.54
  5. Step 5: Solve for x
    x = 1,447,165,604.54/45,973.48
  6. Step 6: Final answer
    x = 31,478.27

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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.