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Finding the Fourth Proportional to 79,375.36, 109,534.40 and 47,561.92

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Solution

The fourth proportional to 79,375.36, 109,534.40 and 47,561.92 is: 65,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,375.36 : 109,534.40 = 47,561.92 : x
  2. Step 2: Convert to fraction form
    79,375.36/109,534.40 = 47,561.92/x
  3. Step 3: Cross multiply
    79,375.36x = 109,534.40 × 47,561.92
  4. Step 4: Simplify right side
    79,375.36x = 5,209,666,370.05
  5. Step 5: Solve for x
    x = 5,209,666,370.05/79,375.36
  6. Step 6: Final answer
    x = 65,633.29

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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.