Home / 78,818.24-108,771.80-43,010.22

Finding the Fourth Proportional to 78,818.24, 108,771.80 and 43,010.22

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Solution

The fourth proportional to 78,818.24, 108,771.80 and 43,010.22 is: 59,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.24 : 108,771.80 = 43,010.22 : x
  2. Step 2: Convert to fraction form
    78,818.24/108,771.80 = 43,010.22/x
  3. Step 3: Cross multiply
    78,818.24x = 108,771.80 × 43,010.22
  4. Step 4: Simplify right side
    78,818.24x = 4,678,298,775.87
  5. Step 5: Solve for x
    x = 4,678,298,775.87/78,818.24
  6. Step 6: Final answer
    x = 59,355.53

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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.