Home / 55,281.99-76,289.17-31,408.70

Finding the Fourth Proportional to 55,281.99, 76,289.17 and 31,408.70

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Solution

The fourth proportional to 55,281.99, 76,289.17 and 31,408.70 is: 43,344.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281.99 : 76,289.17 = 31,408.70 : x
  2. Step 2: Convert to fraction form
    55,281.99/76,289.17 = 31,408.70/x
  3. Step 3: Cross multiply
    55,281.99x = 76,289.17 × 31,408.70
  4. Step 4: Simplify right side
    55,281.99x = 2,396,143,653.78
  5. Step 5: Solve for x
    x = 2,396,143,653.78/55,281.99
  6. Step 6: Final answer
    x = 43,344.02

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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.