Home / 61,120.40-91,262.44-54,754.16

Finding the Fourth Proportional to 61,120.40, 91,262.44 and 54,754.16

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Solution

The fourth proportional to 61,120.40, 91,262.44 and 54,754.16 is: 81,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,120.40 : 91,262.44 = 54,754.16 : x
  2. Step 2: Convert to fraction form
    61,120.40/91,262.44 = 54,754.16/x
  3. Step 3: Cross multiply
    61,120.40x = 91,262.44 × 54,754.16
  4. Step 4: Simplify right side
    61,120.40x = 4,996,998,241.75
  5. Step 5: Solve for x
    x = 4,996,998,241.75/61,120.40
  6. Step 6: Final answer
    x = 81,756.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.