Home / 81,286.07-112,137.35-52,614.93

Finding the Fourth Proportional to 81,286.07, 112,137.35 and 52,614.93

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Solution

The fourth proportional to 81,286.07, 112,137.35 and 52,614.93 is: 72,584.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,286.07 : 112,137.35 = 52,614.93 : x
  2. Step 2: Convert to fraction form
    81,286.07/112,137.35 = 52,614.93/x
  3. Step 3: Cross multiply
    81,286.07x = 112,137.35 × 52,614.93
  4. Step 4: Simplify right side
    81,286.07x = 5,900,098,978.08
  5. Step 5: Solve for x
    x = 5,900,098,978.08/81,286.07
  6. Step 6: Final answer
    x = 72,584.38

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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.