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Finding the Fourth Proportional to 79,495.40, 109,714.02 and 51,283.10

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Solution

The fourth proportional to 79,495.40, 109,714.02 and 51,283.10 is: 70,777.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,495.40 : 109,714.02 = 51,283.10 : x
  2. Step 2: Convert to fraction form
    79,495.40/109,714.02 = 51,283.10/x
  3. Step 3: Cross multiply
    79,495.40x = 109,714.02 × 51,283.10
  4. Step 4: Simplify right side
    79,495.40x = 5,626,475,059.06
  5. Step 5: Solve for x
    x = 5,626,475,059.06/79,495.40
  6. Step 6: Final answer
    x = 70,777.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.