Home / 45,738.64-68,640.76-19,461.84

Finding the Fourth Proportional to 45,738.64, 68,640.76 and 19,461.84

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Solution

The fourth proportional to 45,738.64, 68,640.76 and 19,461.84 is: 29,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,738.64 : 68,640.76 = 19,461.84 : x
  2. Step 2: Convert to fraction form
    45,738.64/68,640.76 = 19,461.84/x
  3. Step 3: Cross multiply
    45,738.64x = 68,640.76 × 19,461.84
  4. Step 4: Simplify right side
    45,738.64x = 1,335,875,488.60
  5. Step 5: Solve for x
    x = 1,335,875,488.60/45,738.64
  6. Step 6: Final answer
    x = 29,206.72

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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.