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Finding the Fourth Proportional to 65,386.60, 97,948.62 and 55,348.36

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Solution

The fourth proportional to 65,386.60, 97,948.62 and 55,348.36 is: 82,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,386.60 : 97,948.62 = 55,348.36 : x
  2. Step 2: Convert to fraction form
    65,386.60/97,948.62 = 55,348.36/x
  3. Step 3: Cross multiply
    65,386.60x = 97,948.62 × 55,348.36
  4. Step 4: Simplify right side
    65,386.60x = 5,421,295,481.26
  5. Step 5: Solve for x
    x = 5,421,295,481.26/65,386.60
  6. Step 6: Final answer
    x = 82,911.41

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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.