Home / 72,035.36-99,414.42-40,209.03

Finding the Fourth Proportional to 72,035.36, 99,414.42 and 40,209.03

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Solution

The fourth proportional to 72,035.36, 99,414.42 and 40,209.03 is: 55,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,035.36 : 99,414.42 = 40,209.03 : x
  2. Step 2: Convert to fraction form
    72,035.36/99,414.42 = 40,209.03/x
  3. Step 3: Cross multiply
    72,035.36x = 99,414.42 × 40,209.03
  4. Step 4: Simplify right side
    72,035.36x = 3,997,357,396.21
  5. Step 5: Solve for x
    x = 3,997,357,396.21/72,035.36
  6. Step 6: Final answer
    x = 55,491.60

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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.