Home / 101,004.36-139,386.99-55,684.15

Finding the Fourth Proportional to 101,004.36, 139,386.99 and 55,684.15

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Solution

The fourth proportional to 101,004.36, 139,386.99 and 55,684.15 is: 76,844.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,004.36 : 139,386.99 = 55,684.15 : x
  2. Step 2: Convert to fraction form
    101,004.36/139,386.99 = 55,684.15/x
  3. Step 3: Cross multiply
    101,004.36x = 139,386.99 × 55,684.15
  4. Step 4: Simplify right side
    101,004.36x = 7,761,646,059.21
  5. Step 5: Solve for x
    x = 7,761,646,059.21/101,004.36
  6. Step 6: Final answer
    x = 76,844.66

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1.5x scale

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.