Home / 55,303.54-76,318.91-31,429.60

Finding the Fourth Proportional to 55,303.54, 76,318.91 and 31,429.60

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Solution

The fourth proportional to 55,303.54, 76,318.91 and 31,429.60 is: 43,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,303.54 : 76,318.91 = 31,429.60 : x
  2. Step 2: Convert to fraction form
    55,303.54/76,318.91 = 31,429.60/x
  3. Step 3: Cross multiply
    55,303.54x = 76,318.91 × 31,429.60
  4. Step 4: Simplify right side
    55,303.54x = 2,398,672,656.59
  5. Step 5: Solve for x
    x = 2,398,672,656.59/55,303.54
  6. Step 6: Final answer
    x = 43,372.86

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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.