Home / 54,753.45-82,139.04-21,455.46

Finding the Fourth Proportional to 54,753.45, 82,139.04 and 21,455.46

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Solution

The fourth proportional to 54,753.45, 82,139.04 and 21,455.46 is: 32,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,753.45 : 82,139.04 = 21,455.46 : x
  2. Step 2: Convert to fraction form
    54,753.45/82,139.04 = 21,455.46/x
  3. Step 3: Cross multiply
    54,753.45x = 82,139.04 × 21,455.46
  4. Step 4: Simplify right side
    54,753.45x = 1,762,330,887.16
  5. Step 5: Solve for x
    x = 1,762,330,887.16/54,753.45
  6. Step 6: Final answer
    x = 32,186.66

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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.