Home / 55,700.26-76,865.30-31,500.80

Finding the Fourth Proportional to 55,700.26, 76,865.30 and 31,500.80

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Solution

The fourth proportional to 55,700.26, 76,865.30 and 31,500.80 is: 43,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,700.26 : 76,865.30 = 31,500.80 : x
  2. Step 2: Convert to fraction form
    55,700.26/76,865.30 = 31,500.80/x
  3. Step 3: Cross multiply
    55,700.26x = 76,865.30 × 31,500.80
  4. Step 4: Simplify right side
    55,700.26x = 2,421,318,483.97
  5. Step 5: Solve for x
    x = 2,421,318,483.97/55,700.26
  6. Step 6: Final answer
    x = 43,470.51

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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.