Home / 84,605.28-116,518.40-82,768.48

Finding the Fourth Proportional to 84,605.28, 116,518.40 and 82,768.48

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Solution

The fourth proportional to 84,605.28, 116,518.40 and 82,768.48 is: 113,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,605.28 : 116,518.40 = 82,768.48 : x
  2. Step 2: Convert to fraction form
    84,605.28/116,518.40 = 82,768.48/x
  3. Step 3: Cross multiply
    84,605.28x = 116,518.40 × 82,768.48
  4. Step 4: Simplify right side
    84,605.28x = 9,644,050,860.03
  5. Step 5: Solve for x
    x = 9,644,050,860.03/84,605.28
  6. Step 6: Final answer
    x = 113,988.76

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1.5x scale

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.