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Finding the Fourth Proportional to 79,675.34, 109,958.40 and 45,686.97

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Solution

The fourth proportional to 79,675.34, 109,958.40 and 45,686.97 is: 63,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,675.34 : 109,958.40 = 45,686.97 : x
  2. Step 2: Convert to fraction form
    79,675.34/109,958.40 = 45,686.97/x
  3. Step 3: Cross multiply
    79,675.34x = 109,958.40 × 45,686.97
  4. Step 4: Simplify right side
    79,675.34x = 5,023,666,122.05
  5. Step 5: Solve for x
    x = 5,023,666,122.05/79,675.34
  6. Step 6: Final answer
    x = 63,051.71

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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.