Home / 51,071.48-76,687.86-30,387.32

Finding the Fourth Proportional to 51,071.48, 76,687.86 and 30,387.32

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Solution

The fourth proportional to 51,071.48, 76,687.86 and 30,387.32 is: 45,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,071.48 : 76,687.86 = 30,387.32 : x
  2. Step 2: Convert to fraction form
    51,071.48/76,687.86 = 30,387.32/x
  3. Step 3: Cross multiply
    51,071.48x = 76,687.86 × 30,387.32
  4. Step 4: Simplify right side
    51,071.48x = 2,330,338,541.94
  5. Step 5: Solve for x
    x = 2,330,338,541.94/51,071.48
  6. Step 6: Final answer
    x = 45,628.96

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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.