Home / 78,744.48-118,112.64-43,273.92

Finding the Fourth Proportional to 78,744.48, 118,112.64 and 43,273.92

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Solution

The fourth proportional to 78,744.48, 118,112.64 and 43,273.92 is: 64,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,744.48 : 118,112.64 = 43,273.92 : x
  2. Step 2: Convert to fraction form
    78,744.48/118,112.64 = 43,273.92/x
  3. Step 3: Cross multiply
    78,744.48x = 118,112.64 × 43,273.92
  4. Step 4: Simplify right side
    78,744.48x = 5,111,196,934.35
  5. Step 5: Solve for x
    x = 5,111,196,934.35/78,744.48
  6. Step 6: Final answer
    x = 64,908.64

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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.