Home / 53,129.76-73,318.96-28,930.35

Finding the Fourth Proportional to 53,129.76, 73,318.96 and 28,930.35

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Solution

The fourth proportional to 53,129.76, 73,318.96 and 28,930.35 is: 39,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.76 : 73,318.96 = 28,930.35 : x
  2. Step 2: Convert to fraction form
    53,129.76/73,318.96 = 28,930.35/x
  3. Step 3: Cross multiply
    53,129.76x = 73,318.96 × 28,930.35
  4. Step 4: Simplify right side
    53,129.76x = 2,121,143,047.87
  5. Step 5: Solve for x
    x = 2,121,143,047.87/53,129.76
  6. Step 6: Final answer
    x = 39,923.82

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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.