Home / 58,116.78-87,156.09-18,664.56

Finding the Fourth Proportional to 58,116.78, 87,156.09 and 18,664.56

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Solution

The fourth proportional to 58,116.78, 87,156.09 and 18,664.56 is: 27,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,116.78 : 87,156.09 = 18,664.56 : x
  2. Step 2: Convert to fraction form
    58,116.78/87,156.09 = 18,664.56/x
  3. Step 3: Cross multiply
    58,116.78x = 87,156.09 × 18,664.56
  4. Step 4: Simplify right side
    58,116.78x = 1,626,730,071.17
  5. Step 5: Solve for x
    x = 1,626,730,071.17/58,116.78
  6. Step 6: Final answer
    x = 27,990.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.