Home / 55,289.10-76,299.09-31,423.70

Finding the Fourth Proportional to 55,289.10, 76,299.09 and 31,423.70

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Solution

The fourth proportional to 55,289.10, 76,299.09 and 31,423.70 is: 43,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,289.10 : 76,299.09 = 31,423.70 : x
  2. Step 2: Convert to fraction form
    55,289.10/76,299.09 = 31,423.70/x
  3. Step 3: Cross multiply
    55,289.10x = 76,299.09 × 31,423.70
  4. Step 4: Simplify right side
    55,289.10x = 2,397,599,714.43
  5. Step 5: Solve for x
    x = 2,397,599,714.43/55,289.10
  6. Step 6: Final answer
    x = 43,364.78

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1.5x scale

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.