Home / 85,495.08-117,961.48-61,291.07

Finding the Fourth Proportional to 85,495.08, 117,961.48 and 61,291.07

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Solution

The fourth proportional to 85,495.08, 117,961.48 and 61,291.07 is: 84,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,495.08 : 117,961.48 = 61,291.07 : x
  2. Step 2: Convert to fraction form
    85,495.08/117,961.48 = 61,291.07/x
  3. Step 3: Cross multiply
    85,495.08x = 117,961.48 × 61,291.07
  4. Step 4: Simplify right side
    85,495.08x = 7,229,985,327.98
  5. Step 5: Solve for x
    x = 7,229,985,327.98/85,495.08
  6. Step 6: Final answer
    x = 84,566.10

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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.