Home / 75,430.50-113,160.33-28,679.73

Finding the Fourth Proportional to 75,430.50, 113,160.33 and 28,679.73

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Solution

The fourth proportional to 75,430.50, 113,160.33 and 28,679.73 is: 43,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,430.50 : 113,160.33 = 28,679.73 : x
  2. Step 2: Convert to fraction form
    75,430.50/113,160.33 = 28,679.73/x
  3. Step 3: Cross multiply
    75,430.50x = 113,160.33 × 28,679.73
  4. Step 4: Simplify right side
    75,430.50x = 3,245,407,711.11
  5. Step 5: Solve for x
    x = 3,245,407,711.11/75,430.50
  6. Step 6: Final answer
    x = 43,025.14

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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.