Home / 79,242.39-109,357.56-43,431.66

Finding the Fourth Proportional to 79,242.39, 109,357.56 and 43,431.66

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Solution

The fourth proportional to 79,242.39, 109,357.56 and 43,431.66 is: 59,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,242.39 : 109,357.56 = 43,431.66 : x
  2. Step 2: Convert to fraction form
    79,242.39/109,357.56 = 43,431.66/x
  3. Step 3: Cross multiply
    79,242.39x = 109,357.56 × 43,431.66
  4. Step 4: Simplify right side
    79,242.39x = 4,749,580,364.35
  5. Step 5: Solve for x
    x = 4,749,580,364.35/79,242.39
  6. Step 6: Final answer
    x = 59,937.37

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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.