Home / 61,116.30-91,728.45-36,125.10

Finding the Fourth Proportional to 61,116.30, 91,728.45 and 36,125.10

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Solution

The fourth proportional to 61,116.30, 91,728.45 and 36,125.10 is: 54,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,116.30 : 91,728.45 = 36,125.10 : x
  2. Step 2: Convert to fraction form
    61,116.30/91,728.45 = 36,125.10/x
  3. Step 3: Cross multiply
    61,116.30x = 91,728.45 × 36,125.10
  4. Step 4: Simplify right side
    61,116.30x = 3,313,699,429.10
  5. Step 5: Solve for x
    x = 3,313,699,429.10/61,116.30
  6. Step 6: Final answer
    x = 54,219.57

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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.