Home / 45,945.76-68,918.64-13,113.76

Finding the Fourth Proportional to 45,945.76, 68,918.64 and 13,113.76

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Solution

The fourth proportional to 45,945.76, 68,918.64 and 13,113.76 is: 19,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,945.76 : 68,918.64 = 13,113.76 : x
  2. Step 2: Convert to fraction form
    45,945.76/68,918.64 = 13,113.76/x
  3. Step 3: Cross multiply
    45,945.76x = 68,918.64 × 13,113.76
  4. Step 4: Simplify right side
    45,945.76x = 903,782,504.49
  5. Step 5: Solve for x
    x = 903,782,504.49/45,945.76
  6. Step 6: Final answer
    x = 19,670.64

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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.