Home / 67,343.60-100,904.16-40,968.56

Finding the Fourth Proportional to 67,343.60, 100,904.16 and 40,968.56

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Solution

The fourth proportional to 67,343.60, 100,904.16 and 40,968.56 is: 61,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,343.60 : 100,904.16 = 40,968.56 : x
  2. Step 2: Convert to fraction form
    67,343.60/100,904.16 = 40,968.56/x
  3. Step 3: Cross multiply
    67,343.60x = 100,904.16 × 40,968.56
  4. Step 4: Simplify right side
    67,343.60x = 4,133,898,133.21
  5. Step 5: Solve for x
    x = 4,133,898,133.21/67,343.60
  6. Step 6: Final answer
    x = 61,385.17

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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.