Home / 101,028.24-139,419.93-55,708.02

Finding the Fourth Proportional to 101,028.24, 139,419.93 and 55,708.02

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Solution

The fourth proportional to 101,028.24, 139,419.93 and 55,708.02 is: 76,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,028.24 : 139,419.93 = 55,708.02 : x
  2. Step 2: Convert to fraction form
    101,028.24/139,419.93 = 55,708.02/x
  3. Step 3: Cross multiply
    101,028.24x = 139,419.93 × 55,708.02
  4. Step 4: Simplify right side
    101,028.24x = 7,766,808,248.84
  5. Step 5: Solve for x
    x = 7,766,808,248.84/101,028.24
  6. Step 6: Final answer
    x = 76,877.60

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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.