Home / 73,869.12-101,939.76-40,335.12

Finding the Fourth Proportional to 73,869.12, 101,939.76 and 40,335.12

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Solution

The fourth proportional to 73,869.12, 101,939.76 and 40,335.12 is: 55,662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,869.12 : 101,939.76 = 40,335.12 : x
  2. Step 2: Convert to fraction form
    73,869.12/101,939.76 = 40,335.12/x
  3. Step 3: Cross multiply
    73,869.12x = 101,939.76 × 40,335.12
  4. Step 4: Simplify right side
    73,869.12x = 4,111,752,452.37
  5. Step 5: Solve for x
    x = 4,111,752,452.37/73,869.12
  6. Step 6: Final answer
    x = 55,662.67

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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.