Home / 55,402.20-76,461.60-31,203.96

Finding the Fourth Proportional to 55,402.20, 76,461.60 and 31,203.96

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Solution

The fourth proportional to 55,402.20, 76,461.60 and 31,203.96 is: 43,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,402.20 : 76,461.60 = 31,203.96 : x
  2. Step 2: Convert to fraction form
    55,402.20/76,461.60 = 31,203.96/x
  3. Step 3: Cross multiply
    55,402.20x = 76,461.60 × 31,203.96
  4. Step 4: Simplify right side
    55,402.20x = 2,385,904,707.94
  5. Step 5: Solve for x
    x = 2,385,904,707.94/55,402.20
  6. Step 6: Final answer
    x = 43,065.16

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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.