Home / 81,113.96-111,936.08-45,304.47

Finding the Fourth Proportional to 81,113.96, 111,936.08 and 45,304.47

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Solution

The fourth proportional to 81,113.96, 111,936.08 and 45,304.47 is: 62,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,113.96 : 111,936.08 = 45,304.47 : x
  2. Step 2: Convert to fraction form
    81,113.96/111,936.08 = 45,304.47/x
  3. Step 3: Cross multiply
    81,113.96x = 111,936.08 × 45,304.47
  4. Step 4: Simplify right side
    81,113.96x = 5,071,204,551.76
  5. Step 5: Solve for x
    x = 5,071,204,551.76/81,113.96
  6. Step 6: Final answer
    x = 62,519.50

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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.