Home / 58,728.73-81,045.86-31,871.23

Finding the Fourth Proportional to 58,728.73, 81,045.86 and 31,871.23

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Solution

The fourth proportional to 58,728.73, 81,045.86 and 31,871.23 is: 43,982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,728.73 : 81,045.86 = 31,871.23 : x
  2. Step 2: Convert to fraction form
    58,728.73/81,045.86 = 31,871.23/x
  3. Step 3: Cross multiply
    58,728.73x = 81,045.86 × 31,871.23
  4. Step 4: Simplify right side
    58,728.73x = 2,583,031,244.61
  5. Step 5: Solve for x
    x = 2,583,031,244.61/58,728.73
  6. Step 6: Final answer
    x = 43,982.41

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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.