Home / 81,417.28-112,357.68-45,605.44

Finding the Fourth Proportional to 81,417.28, 112,357.68 and 45,605.44

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Solution

The fourth proportional to 81,417.28, 112,357.68 and 45,605.44 is: 62,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,417.28 : 112,357.68 = 45,605.44 : x
  2. Step 2: Convert to fraction form
    81,417.28/112,357.68 = 45,605.44/x
  3. Step 3: Cross multiply
    81,417.28x = 112,357.68 × 45,605.44
  4. Step 4: Simplify right side
    81,417.28x = 5,124,121,433.78
  5. Step 5: Solve for x
    x = 5,124,121,433.78/81,417.28
  6. Step 6: Final answer
    x = 62,936.53

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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.