Home / 81,332.40-112,241.09-45,521.49

Finding the Fourth Proportional to 81,332.40, 112,241.09 and 45,521.49

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Solution

The fourth proportional to 81,332.40, 112,241.09 and 45,521.49 is: 62,820.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,332.40 : 112,241.09 = 45,521.49 : x
  2. Step 2: Convert to fraction form
    81,332.40/112,241.09 = 45,521.49/x
  3. Step 3: Cross multiply
    81,332.40x = 112,241.09 × 45,521.49
  4. Step 4: Simplify right side
    81,332.40x = 5,109,382,190.73
  5. Step 5: Solve for x
    x = 5,109,382,190.73/81,332.40
  6. Step 6: Final answer
    x = 62,820.99

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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.