Home / 89,439.53-134,151.03-30,268.40

Finding the Fourth Proportional to 89,439.53, 134,151.03 and 30,268.40

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Solution

The fourth proportional to 89,439.53, 134,151.03 and 30,268.40 is: 45,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,439.53 : 134,151.03 = 30,268.40 : x
  2. Step 2: Convert to fraction form
    89,439.53/134,151.03 = 30,268.40/x
  3. Step 3: Cross multiply
    89,439.53x = 134,151.03 × 30,268.40
  4. Step 4: Simplify right side
    89,439.53x = 4,060,536,365.70
  5. Step 5: Solve for x
    x = 4,060,536,365.70/89,439.53
  6. Step 6: Final answer
    x = 45,399.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.