Home / 53,178.63-73,385.56-28,979.81

Finding the Fourth Proportional to 53,178.63, 73,385.56 and 28,979.81

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Solution

The fourth proportional to 53,178.63, 73,385.56 and 28,979.81 is: 39,991.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,178.63 : 73,385.56 = 28,979.81 : x
  2. Step 2: Convert to fraction form
    53,178.63/73,385.56 = 28,979.81/x
  3. Step 3: Cross multiply
    53,178.63x = 73,385.56 × 28,979.81
  4. Step 4: Simplify right side
    53,178.63x = 2,126,699,474.53
  5. Step 5: Solve for x
    x = 2,126,699,474.53/53,178.63
  6. Step 6: Final answer
    x = 39,991.62

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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.