Home / 90,322.64-135,488.26-43,614.80

Finding the Fourth Proportional to 90,322.64, 135,488.26 and 43,614.80

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Solution

The fourth proportional to 90,322.64, 135,488.26 and 43,614.80 is: 65,424.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,322.64 : 135,488.26 = 43,614.80 : x
  2. Step 2: Convert to fraction form
    90,322.64/135,488.26 = 43,614.80/x
  3. Step 3: Cross multiply
    90,322.64x = 135,488.26 × 43,614.80
  4. Step 4: Simplify right side
    90,322.64x = 5,909,293,362.25
  5. Step 5: Solve for x
    x = 5,909,293,362.25/90,322.64
  6. Step 6: Final answer
    x = 65,424.28

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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.