Home / 81,697.41-112,693.59-51,430.23

Finding the Fourth Proportional to 81,697.41, 112,693.59 and 51,430.23

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Solution

The fourth proportional to 81,697.41, 112,693.59 and 51,430.23 is: 70,942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,697.41 : 112,693.59 = 51,430.23 : x
  2. Step 2: Convert to fraction form
    81,697.41/112,693.59 = 51,430.23/x
  3. Step 3: Cross multiply
    81,697.41x = 112,693.59 × 51,430.23
  4. Step 4: Simplify right side
    81,697.41x = 5,795,857,253.23
  5. Step 5: Solve for x
    x = 5,795,857,253.23/81,697.41
  6. Step 6: Final answer
    x = 70,942.97

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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.