Home / 42,738.30-64,160.10-26,943.30

Finding the Fourth Proportional to 42,738.30, 64,160.10 and 26,943.30

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Solution

The fourth proportional to 42,738.30, 64,160.10 and 26,943.30 is: 40,448.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,738.30 : 64,160.10 = 26,943.30 : x
  2. Step 2: Convert to fraction form
    42,738.30/64,160.10 = 26,943.30/x
  3. Step 3: Cross multiply
    42,738.30x = 64,160.10 × 26,943.30
  4. Step 4: Simplify right side
    42,738.30x = 1,728,684,822.33
  5. Step 5: Solve for x
    x = 1,728,684,822.33/42,738.30
  6. Step 6: Final answer
    x = 40,448.14

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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.