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Finding the Fourth Proportional to 61,203.60, 91,805.40 and 26,211.60

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Solution

The fourth proportional to 61,203.60, 91,805.40 and 26,211.60 is: 39,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,203.60 : 91,805.40 = 26,211.60 : x
  2. Step 2: Convert to fraction form
    61,203.60/91,805.40 = 26,211.60/x
  3. Step 3: Cross multiply
    61,203.60x = 91,805.40 × 26,211.60
  4. Step 4: Simplify right side
    61,203.60x = 2,406,366,422.64
  5. Step 5: Solve for x
    x = 2,406,366,422.64/61,203.60
  6. Step 6: Final answer
    x = 39,317.40

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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.