Home / 81,132.37-111,962.13-45,322.06

Finding the Fourth Proportional to 81,132.37, 111,962.13 and 45,322.06

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Solution

The fourth proportional to 81,132.37, 111,962.13 and 45,322.06 is: 62,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,132.37 : 111,962.13 = 45,322.06 : x
  2. Step 2: Convert to fraction form
    81,132.37/111,962.13 = 45,322.06/x
  3. Step 3: Cross multiply
    81,132.37x = 111,962.13 × 45,322.06
  4. Step 4: Simplify right side
    81,132.37x = 5,074,354,373.59
  5. Step 5: Solve for x
    x = 5,074,354,373.59/81,132.37
  6. Step 6: Final answer
    x = 62,544.14

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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.