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Finding the Fourth Proportional to 89,307.36, 123,259.32 and 51,603.48

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Solution

The fourth proportional to 89,307.36, 123,259.32 and 51,603.48 is: 71,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,307.36 : 123,259.32 = 51,603.48 : x
  2. Step 2: Convert to fraction form
    89,307.36/123,259.32 = 51,603.48/x
  3. Step 3: Cross multiply
    89,307.36x = 123,259.32 × 51,603.48
  4. Step 4: Simplify right side
    89,307.36x = 6,360,609,854.43
  5. Step 5: Solve for x
    x = 6,360,609,854.43/89,307.36
  6. Step 6: Final answer
    x = 71,221.56

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