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Finding the Fourth Proportional to 79,347.25, 109,499.21 and 45,813.25

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Solution

The fourth proportional to 79,347.25, 109,499.21 and 45,813.25 is: 63,222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,347.25 : 109,499.21 = 45,813.25 : x
  2. Step 2: Convert to fraction form
    79,347.25/109,499.21 = 45,813.25/x
  3. Step 3: Cross multiply
    79,347.25x = 109,499.21 × 45,813.25
  4. Step 4: Simplify right side
    79,347.25x = 5,016,514,682.53
  5. Step 5: Solve for x
    x = 5,016,514,682.53/79,347.25
  6. Step 6: Final answer
    x = 63,222.29

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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.