Home / 55,268.76-76,254.30-31,392.12

Finding the Fourth Proportional to 55,268.76, 76,254.30 and 31,392.12

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Solution

The fourth proportional to 55,268.76, 76,254.30 and 31,392.12 is: 43,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,268.76 : 76,254.30 = 31,392.12 : x
  2. Step 2: Convert to fraction form
    55,268.76/76,254.30 = 31,392.12/x
  3. Step 3: Cross multiply
    55,268.76x = 76,254.30 × 31,392.12
  4. Step 4: Simplify right side
    55,268.76x = 2,393,784,136.12
  5. Step 5: Solve for x
    x = 2,393,784,136.12/55,268.76
  6. Step 6: Final answer
    x = 43,311.70

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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.