Home / 55,208.60-76,189.72-31,013.84

Finding the Fourth Proportional to 55,208.60, 76,189.72 and 31,013.84

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Solution

The fourth proportional to 55,208.60, 76,189.72 and 31,013.84 is: 42,800.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,208.60 : 76,189.72 = 31,013.84 : x
  2. Step 2: Convert to fraction form
    55,208.60/76,189.72 = 31,013.84/x
  3. Step 3: Cross multiply
    55,208.60x = 76,189.72 × 31,013.84
  4. Step 4: Simplify right side
    55,208.60x = 2,362,935,785.72
  5. Step 5: Solve for x
    x = 2,362,935,785.72/55,208.60
  6. Step 6: Final answer
    x = 42,800.14

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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.