Home / 101,412.47-139,936.78-56,084.33

Finding the Fourth Proportional to 101,412.47, 139,936.78 and 56,084.33

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Solution

The fourth proportional to 101,412.47, 139,936.78 and 56,084.33 is: 77,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,412.47 : 139,936.78 = 56,084.33 : x
  2. Step 2: Convert to fraction form
    101,412.47/139,936.78 = 56,084.33/x
  3. Step 3: Cross multiply
    101,412.47x = 139,936.78 × 56,084.33
  4. Step 4: Simplify right side
    101,412.47x = 7,848,260,548.66
  5. Step 5: Solve for x
    x = 7,848,260,548.66/101,412.47
  6. Step 6: Final answer
    x = 77,389.50

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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.