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Finding the Fourth Proportional to 84,973.44, 127,496 and 45,520

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Solution

The fourth proportional to 84,973.44, 127,496 and 45,520 is: 68,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,973.44 : 127,496 = 45,520 : x
  2. Step 2: Convert to fraction form
    84,973.44/127,496 = 45,520/x
  3. Step 3: Cross multiply
    84,973.44x = 127,496 × 45,520
  4. Step 4: Simplify right side
    84,973.44x = 5,803,617,920
  5. Step 5: Solve for x
    x = 5,803,617,920/84,973.44
  6. Step 6: Final answer
    x = 68,299.20

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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.