Home / 53,178.86-73,385.89-28,980.04

Finding the Fourth Proportional to 53,178.86, 73,385.89 and 28,980.04

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Solution

The fourth proportional to 53,178.86, 73,385.89 and 28,980.04 is: 39,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,178.86 : 73,385.89 = 28,980.04 : x
  2. Step 2: Convert to fraction form
    53,178.86/73,385.89 = 28,980.04/x
  3. Step 3: Cross multiply
    53,178.86x = 73,385.89 × 28,980.04
  4. Step 4: Simplify right side
    53,178.86x = 2,126,726,027.64
  5. Step 5: Solve for x
    x = 2,126,726,027.64/53,178.86
  6. Step 6: Final answer
    x = 39,991.94

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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.