Home / 101,004.76-139,389.56-55,684.65

Finding the Fourth Proportional to 101,004.76, 139,389.56 and 55,684.65

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Solution

The fourth proportional to 101,004.76, 139,389.56 and 55,684.65 is: 76,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,004.76 : 139,389.56 = 55,684.65 : x
  2. Step 2: Convert to fraction form
    101,004.76/139,389.56 = 55,684.65/x
  3. Step 3: Cross multiply
    101,004.76x = 139,389.56 × 55,684.65
  4. Step 4: Simplify right side
    101,004.76x = 7,761,858,862.25
  5. Step 5: Solve for x
    x = 7,761,858,862.25/101,004.76
  6. Step 6: Final answer
    x = 76,846.47

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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.