Home / 55,130.93-76,082.39-31,258.61

Finding the Fourth Proportional to 55,130.93, 76,082.39 and 31,258.61

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Solution

The fourth proportional to 55,130.93, 76,082.39 and 31,258.61 is: 43,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,130.93 : 76,082.39 = 31,258.61 : x
  2. Step 2: Convert to fraction form
    55,130.93/76,082.39 = 31,258.61/x
  3. Step 3: Cross multiply
    55,130.93x = 76,082.39 × 31,258.61
  4. Step 4: Simplify right side
    55,130.93x = 2,378,229,220.17
  5. Step 5: Solve for x
    x = 2,378,229,220.17/55,130.93
  6. Step 6: Final answer
    x = 43,137.84

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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.