Home / 58,845.72-81,203.68-31,988

Finding the Fourth Proportional to 58,845.72, 81,203.68 and 31,988

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Solution

The fourth proportional to 58,845.72, 81,203.68 and 31,988 is: 44,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,845.72 : 81,203.68 = 31,988 : x
  2. Step 2: Convert to fraction form
    58,845.72/81,203.68 = 31,988/x
  3. Step 3: Cross multiply
    58,845.72x = 81,203.68 × 31,988
  4. Step 4: Simplify right side
    58,845.72x = 2,597,543,315.84
  5. Step 5: Solve for x
    x = 2,597,543,315.84/58,845.72
  6. Step 6: Final answer
    x = 44,141.58

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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.