Home / 55,326.40-82,989.60-31,998.40

Finding the Fourth Proportional to 55,326.40, 82,989.60 and 31,998.40

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Solution

The fourth proportional to 55,326.40, 82,989.60 and 31,998.40 is: 47,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,326.40 : 82,989.60 = 31,998.40 : x
  2. Step 2: Convert to fraction form
    55,326.40/82,989.60 = 31,998.40/x
  3. Step 3: Cross multiply
    55,326.40x = 82,989.60 × 31,998.40
  4. Step 4: Simplify right side
    55,326.40x = 2,655,534,416.64
  5. Step 5: Solve for x
    x = 2,655,534,416.64/55,326.40
  6. Step 6: Final answer
    x = 47,997.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.