Home / 51,688.87-71,341.76-31,541.44

Finding the Fourth Proportional to 51,688.87, 71,341.76 and 31,541.44

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Solution

The fourth proportional to 51,688.87, 71,341.76 and 31,541.44 is: 43,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,688.87 : 71,341.76 = 31,541.44 : x
  2. Step 2: Convert to fraction form
    51,688.87/71,341.76 = 31,541.44/x
  3. Step 3: Cross multiply
    51,688.87x = 71,341.76 × 31,541.44
  4. Step 4: Simplify right side
    51,688.87x = 2,250,221,842.53
  5. Step 5: Solve for x
    x = 2,250,221,842.53/51,688.87
  6. Step 6: Final answer
    x = 43,533.97

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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.