Home / 49,918.68-68,875.92-31,045.68

Finding the Fourth Proportional to 49,918.68, 68,875.92 and 31,045.68

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Solution

The fourth proportional to 49,918.68, 68,875.92 and 31,045.68 is: 42,835.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,918.68 : 68,875.92 = 31,045.68 : x
  2. Step 2: Convert to fraction form
    49,918.68/68,875.92 = 31,045.68/x
  3. Step 3: Cross multiply
    49,918.68x = 68,875.92 × 31,045.68
  4. Step 4: Simplify right side
    49,918.68x = 2,138,299,772.03
  5. Step 5: Solve for x
    x = 2,138,299,772.03/49,918.68
  6. Step 6: Final answer
    x = 42,835.66

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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.