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Finding the Fourth Proportional to 84,801.79, 127,052.99 and 51,454.13

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Solution

The fourth proportional to 84,801.79, 127,052.99 and 51,454.13 is: 77,090.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,801.79 : 127,052.99 = 51,454.13 : x
  2. Step 2: Convert to fraction form
    84,801.79/127,052.99 = 51,454.13/x
  3. Step 3: Cross multiply
    84,801.79x = 127,052.99 × 51,454.13
  4. Step 4: Simplify right side
    84,801.79x = 6,537,401,124.71
  5. Step 5: Solve for x
    x = 6,537,401,124.71/84,801.79
  6. Step 6: Final answer
    x = 77,090.37

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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.