Home / 90,629.04-135,790.05-55,495.29

Finding the Fourth Proportional to 90,629.04, 135,790.05 and 55,495.29

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Solution

The fourth proportional to 90,629.04, 135,790.05 and 55,495.29 is: 83,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,629.04 : 135,790.05 = 55,495.29 : x
  2. Step 2: Convert to fraction form
    90,629.04/135,790.05 = 55,495.29/x
  3. Step 3: Cross multiply
    90,629.04x = 135,790.05 × 55,495.29
  4. Step 4: Simplify right side
    90,629.04x = 7,535,708,203.86
  5. Step 5: Solve for x
    x = 7,535,708,203.86/90,629.04
  6. Step 6: Final answer
    x = 83,148.94

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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.