Home / 73,919.13-102,008.39-40,385.13

Finding the Fourth Proportional to 73,919.13, 102,008.39 and 40,385.13

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Solution

The fourth proportional to 73,919.13, 102,008.39 and 40,385.13 is: 55,731.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,919.13 : 102,008.39 = 40,385.13 : x
  2. Step 2: Convert to fraction form
    73,919.13/102,008.39 = 40,385.13/x
  3. Step 3: Cross multiply
    73,919.13x = 102,008.39 × 40,385.13
  4. Step 4: Simplify right side
    73,919.13x = 4,119,622,091.24
  5. Step 5: Solve for x
    x = 4,119,622,091.24/73,919.13
  6. Step 6: Final answer
    x = 55,731.47

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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.