Home / 81,132.66-111,952.05-45,318.18

Finding the Fourth Proportional to 81,132.66, 111,952.05 and 45,318.18

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Solution

The fourth proportional to 81,132.66, 111,952.05 and 45,318.18 is: 62,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,132.66 : 111,952.05 = 45,318.18 : x
  2. Step 2: Convert to fraction form
    81,132.66/111,952.05 = 45,318.18/x
  3. Step 3: Cross multiply
    81,132.66x = 111,952.05 × 45,318.18
  4. Step 4: Simplify right side
    81,132.66x = 5,073,463,153.27
  5. Step 5: Solve for x
    x = 5,073,463,153.27/81,132.66
  6. Step 6: Final answer
    x = 62,532.93

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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.