Home / 101,032.96-139,426.32-55,712.56

Finding the Fourth Proportional to 101,032.96, 139,426.32 and 55,712.56

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Solution

The fourth proportional to 101,032.96, 139,426.32 and 55,712.56 is: 76,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,032.96 : 139,426.32 = 55,712.56 : x
  2. Step 2: Convert to fraction form
    101,032.96/139,426.32 = 55,712.56/x
  3. Step 3: Cross multiply
    101,032.96x = 139,426.32 × 55,712.56
  4. Step 4: Simplify right side
    101,032.96x = 7,767,797,218.58
  5. Step 5: Solve for x
    x = 7,767,797,218.58/101,032.96
  6. Step 6: Final answer
    x = 76,883.79

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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.