Home / 81,076.65-111,878.40-45,260.07

Finding the Fourth Proportional to 81,076.65, 111,878.40 and 45,260.07

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Solution

The fourth proportional to 81,076.65, 111,878.40 and 45,260.07 is: 62,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,076.65 : 111,878.40 = 45,260.07 : x
  2. Step 2: Convert to fraction form
    81,076.65/111,878.40 = 45,260.07/x
  3. Step 3: Cross multiply
    81,076.65x = 111,878.40 × 45,260.07
  4. Step 4: Simplify right side
    81,076.65x = 5,063,624,215.49
  5. Step 5: Solve for x
    x = 5,063,624,215.49/81,076.65
  6. Step 6: Final answer
    x = 62,454.78

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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.