Home / 73,138.50-100,933.38-40,875.66

Finding the Fourth Proportional to 73,138.50, 100,933.38 and 40,875.66

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Solution

The fourth proportional to 73,138.50, 100,933.38 and 40,875.66 is: 56,409.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,138.50 : 100,933.38 = 40,875.66 : x
  2. Step 2: Convert to fraction form
    73,138.50/100,933.38 = 40,875.66/x
  3. Step 3: Cross multiply
    73,138.50x = 100,933.38 × 40,875.66
  4. Step 4: Simplify right side
    73,138.50x = 4,125,718,523.53
  5. Step 5: Solve for x
    x = 4,125,718,523.53/73,138.50
  6. Step 6: Final answer
    x = 56,409.67

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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.