Home / 81,628.55-112,646.46-45,817.64

Finding the Fourth Proportional to 81,628.55, 112,646.46 and 45,817.64

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Solution

The fourth proportional to 81,628.55, 112,646.46 and 45,817.64 is: 63,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,628.55 : 112,646.46 = 45,817.64 : x
  2. Step 2: Convert to fraction form
    81,628.55/112,646.46 = 45,817.64/x
  3. Step 3: Cross multiply
    81,628.55x = 112,646.46 × 45,817.64
  4. Step 4: Simplify right side
    81,628.55x = 5,161,194,951.55
  5. Step 5: Solve for x
    x = 5,161,194,951.55/81,628.55
  6. Step 6: Final answer
    x = 63,227.82

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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.