Home / 78,820.14-108,771.36-43,010.04

Finding the Fourth Proportional to 78,820.14, 108,771.36 and 43,010.04

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Solution

The fourth proportional to 78,820.14, 108,771.36 and 43,010.04 is: 59,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820.14 : 108,771.36 = 43,010.04 : x
  2. Step 2: Convert to fraction form
    78,820.14/108,771.36 = 43,010.04/x
  3. Step 3: Cross multiply
    78,820.14x = 108,771.36 × 43,010.04
  4. Step 4: Simplify right side
    78,820.14x = 4,678,260,544.45
  5. Step 5: Solve for x
    x = 4,678,260,544.45/78,820.14
  6. Step 6: Final answer
    x = 59,353.62

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1.5x scale

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.