Home / 101,744.07-140,406.81-56,428.97

Finding the Fourth Proportional to 101,744.07, 140,406.81 and 56,428.97

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Solution

The fourth proportional to 101,744.07, 140,406.81 and 56,428.97 is: 77,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,744.07 : 140,406.81 = 56,428.97 : x
  2. Step 2: Convert to fraction form
    101,744.07/140,406.81 = 56,428.97/x
  3. Step 3: Cross multiply
    101,744.07x = 140,406.81 × 56,428.97
  4. Step 4: Simplify right side
    101,744.07x = 7,923,010,967.25
  5. Step 5: Solve for x
    x = 7,923,010,967.25/101,744.07
  6. Step 6: Final answer
    x = 77,871.97

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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.