Home / 78,750.45-118,092.38-43,201.62

Finding the Fourth Proportional to 78,750.45, 118,092.38 and 43,201.62

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Solution

The fourth proportional to 78,750.45, 118,092.38 and 43,201.62 is: 64,784.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,750.45 : 118,092.38 = 43,201.62 : x
  2. Step 2: Convert to fraction form
    78,750.45/118,092.38 = 43,201.62/x
  3. Step 3: Cross multiply
    78,750.45x = 118,092.38 × 43,201.62
  4. Step 4: Simplify right side
    78,750.45x = 5,101,781,909.65
  5. Step 5: Solve for x
    x = 5,101,781,909.65/78,750.45
  6. Step 6: Final answer
    x = 64,784.16

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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.