Home / 101,324.64-139,835.25-56,001.65

Finding the Fourth Proportional to 101,324.64, 139,835.25 and 56,001.65

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Solution

The fourth proportional to 101,324.64, 139,835.25 and 56,001.65 is: 77,286.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,324.64 : 139,835.25 = 56,001.65 : x
  2. Step 2: Convert to fraction form
    101,324.64/139,835.25 = 56,001.65/x
  3. Step 3: Cross multiply
    101,324.64x = 139,835.25 × 56,001.65
  4. Step 4: Simplify right side
    101,324.64x = 7,831,004,448.15
  5. Step 5: Solve for x
    x = 7,831,004,448.15/101,324.64
  6. Step 6: Final answer
    x = 77,286.28

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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.