Home / 101,008.57-139,389.26-55,685.51

Finding the Fourth Proportional to 101,008.57, 139,389.26 and 55,685.51

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Solution

The fourth proportional to 101,008.57, 139,389.26 and 55,685.51 is: 76,844.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,008.57 : 139,389.26 = 55,685.51 : x
  2. Step 2: Convert to fraction form
    101,008.57/139,389.26 = 55,685.51/x
  3. Step 3: Cross multiply
    101,008.57x = 139,389.26 × 55,685.51
  4. Step 4: Simplify right side
    101,008.57x = 7,761,962,031.62
  5. Step 5: Solve for x
    x = 7,761,962,031.62/101,008.57
  6. Step 6: Final answer
    x = 76,844.59

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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.