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Finding the Fourth Proportional to 79,507.47, 109,604.70 and 55,559.82

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Solution

The fourth proportional to 79,507.47, 109,604.70 and 55,559.82 is: 76,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507.47 : 109,604.70 = 55,559.82 : x
  2. Step 2: Convert to fraction form
    79,507.47/109,604.70 = 55,559.82/x
  3. Step 3: Cross multiply
    79,507.47x = 109,604.70 × 55,559.82
  4. Step 4: Simplify right side
    79,507.47x = 6,089,617,403.15
  5. Step 5: Solve for x
    x = 6,089,617,403.15/79,507.47
  6. Step 6: Final answer
    x = 76,591.76

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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.