Home / 81,165.94-111,996.75-45,357.46

Finding the Fourth Proportional to 81,165.94, 111,996.75 and 45,357.46

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Solution

The fourth proportional to 81,165.94, 111,996.75 and 45,357.46 is: 62,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,165.94 : 111,996.75 = 45,357.46 : x
  2. Step 2: Convert to fraction form
    81,165.94/111,996.75 = 45,357.46/x
  3. Step 3: Cross multiply
    81,165.94x = 111,996.75 × 45,357.46
  4. Step 4: Simplify right side
    81,165.94x = 5,079,888,108.26
  5. Step 5: Solve for x
    x = 5,079,888,108.26/81,165.94
  6. Step 6: Final answer
    x = 62,586.45

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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.