Home / 109,488.90-164,221.20-30,611.10

Finding the Fourth Proportional to 109,488.90, 164,221.20 and 30,611.10

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Solution

The fourth proportional to 109,488.90, 164,221.20 and 30,611.10 is: 45,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,488.90 : 164,221.20 = 30,611.10 : x
  2. Step 2: Convert to fraction form
    109,488.90/164,221.20 = 30,611.10/x
  3. Step 3: Cross multiply
    109,488.90x = 164,221.20 × 30,611.10
  4. Step 4: Simplify right side
    109,488.90x = 5,026,991,575.32
  5. Step 5: Solve for x
    x = 5,026,991,575.32/109,488.90
  6. Step 6: Final answer
    x = 45,913.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.