Home / 55,400.81-76,453.20-31,527.68

Finding the Fourth Proportional to 55,400.81, 76,453.20 and 31,527.68

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Solution

The fourth proportional to 55,400.81, 76,453.20 and 31,527.68 is: 43,508.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,400.81 : 76,453.20 = 31,527.68 : x
  2. Step 2: Convert to fraction form
    55,400.81/76,453.20 = 31,527.68/x
  3. Step 3: Cross multiply
    55,400.81x = 76,453.20 × 31,527.68
  4. Step 4: Simplify right side
    55,400.81x = 2,410,391,642.31
  5. Step 5: Solve for x
    x = 2,410,391,642.31/55,400.81
  6. Step 6: Final answer
    x = 43,508.24

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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.