Home / 124,939.50-187,428.74-40,679.78

Finding the Fourth Proportional to 124,939.50, 187,428.74 and 40,679.78

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Solution

The fourth proportional to 124,939.50, 187,428.74 and 40,679.78 is: 61,026.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,939.50 : 187,428.74 = 40,679.78 : x
  2. Step 2: Convert to fraction form
    124,939.50/187,428.74 = 40,679.78/x
  3. Step 3: Cross multiply
    124,939.50x = 187,428.74 × 40,679.78
  4. Step 4: Simplify right side
    124,939.50x = 7,624,558,768.33
  5. Step 5: Solve for x
    x = 7,624,558,768.33/124,939.50
  6. Step 6: Final answer
    x = 61,026.01

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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.