Home / 58,081.20-87,128.28-18,624.48

Finding the Fourth Proportional to 58,081.20, 87,128.28 and 18,624.48

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Solution

The fourth proportional to 58,081.20, 87,128.28 and 18,624.48 is: 27,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,081.20 : 87,128.28 = 18,624.48 : x
  2. Step 2: Convert to fraction form
    58,081.20/87,128.28 = 18,624.48/x
  3. Step 3: Cross multiply
    58,081.20x = 87,128.28 × 18,624.48
  4. Step 4: Simplify right side
    58,081.20x = 1,622,718,908.29
  5. Step 5: Solve for x
    x = 1,622,718,908.29/58,081.20
  6. Step 6: Final answer
    x = 27,938.80

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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.