Home / 54,890.30-75,750.10-31,016.48

Finding the Fourth Proportional to 54,890.30, 75,750.10 and 31,016.48

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Solution

The fourth proportional to 54,890.30, 75,750.10 and 31,016.48 is: 42,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,890.30 : 75,750.10 = 31,016.48 : x
  2. Step 2: Convert to fraction form
    54,890.30/75,750.10 = 31,016.48/x
  3. Step 3: Cross multiply
    54,890.30x = 75,750.10 × 31,016.48
  4. Step 4: Simplify right side
    54,890.30x = 2,349,501,461.65
  5. Step 5: Solve for x
    x = 2,349,501,461.65/54,890.30
  6. Step 6: Final answer
    x = 42,803.58

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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.