Home / 55,478.47-76,561.10-31,604.63

Finding the Fourth Proportional to 55,478.47, 76,561.10 and 31,604.63

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Solution

The fourth proportional to 55,478.47, 76,561.10 and 31,604.63 is: 43,614.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,478.47 : 76,561.10 = 31,604.63 : x
  2. Step 2: Convert to fraction form
    55,478.47/76,561.10 = 31,604.63/x
  3. Step 3: Cross multiply
    55,478.47x = 76,561.10 × 31,604.63
  4. Step 4: Simplify right side
    55,478.47x = 2,419,685,153.99
  5. Step 5: Solve for x
    x = 2,419,685,153.99/55,478.47
  6. Step 6: Final answer
    x = 43,614.85

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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.