Home / 75,109.44-112,623.72-30,108.20

Finding the Fourth Proportional to 75,109.44, 112,623.72 and 30,108.20

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Solution

The fourth proportional to 75,109.44, 112,623.72 and 30,108.20 is: 45,146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,109.44 : 112,623.72 = 30,108.20 : x
  2. Step 2: Convert to fraction form
    75,109.44/112,623.72 = 30,108.20/x
  3. Step 3: Cross multiply
    75,109.44x = 112,623.72 × 30,108.20
  4. Step 4: Simplify right side
    75,109.44x = 3,390,897,486.50
  5. Step 5: Solve for x
    x = 3,390,897,486.50/75,109.44
  6. Step 6: Final answer
    x = 45,146.09

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1.5x scale

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.