Home / 55,435.12-76,491.64-31,562.24

Finding the Fourth Proportional to 55,435.12, 76,491.64 and 31,562.24

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Solution

The fourth proportional to 55,435.12, 76,491.64 and 31,562.24 is: 43,550.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,435.12 : 76,491.64 = 31,562.24 : x
  2. Step 2: Convert to fraction form
    55,435.12/76,491.64 = 31,562.24/x
  3. Step 3: Cross multiply
    55,435.12x = 76,491.64 × 31,562.24
  4. Step 4: Simplify right side
    55,435.12x = 2,414,247,499.67
  5. Step 5: Solve for x
    x = 2,414,247,499.67/55,435.12
  6. Step 6: Final answer
    x = 43,550.87

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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.