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Finding the Fourth Proportional to 65,379.15, 97,919.28 and 51,307.02

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Solution

The fourth proportional to 65,379.15, 97,919.28 and 51,307.02 is: 76,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,379.15 : 97,919.28 = 51,307.02 : x
  2. Step 2: Convert to fraction form
    65,379.15/97,919.28 = 51,307.02/x
  3. Step 3: Cross multiply
    65,379.15x = 97,919.28 × 51,307.02
  4. Step 4: Simplify right side
    65,379.15x = 5,023,946,457.35
  5. Step 5: Solve for x
    x = 5,023,946,457.35/65,379.15
  6. Step 6: Final answer
    x = 76,843.25

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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.