Home / 72,664.30-100,265.07-40,833.10

Finding the Fourth Proportional to 72,664.30, 100,265.07 and 40,833.10

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Solution

The fourth proportional to 72,664.30, 100,265.07 and 40,833.10 is: 56,343.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,664.30 : 100,265.07 = 40,833.10 : x
  2. Step 2: Convert to fraction form
    72,664.30/100,265.07 = 40,833.10/x
  3. Step 3: Cross multiply
    72,664.30x = 100,265.07 × 40,833.10
  4. Step 4: Simplify right side
    72,664.30x = 4,094,133,629.82
  5. Step 5: Solve for x
    x = 4,094,133,629.82/72,664.30
  6. Step 6: Final answer
    x = 56,343.12

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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.