Home / 58,186.31-87,279.53-18,749.30

Finding the Fourth Proportional to 58,186.31, 87,279.53 and 18,749.30

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Solution

The fourth proportional to 58,186.31, 87,279.53 and 18,749.30 is: 28,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,186.31 : 87,279.53 = 18,749.30 : x
  2. Step 2: Convert to fraction form
    58,186.31/87,279.53 = 18,749.30/x
  3. Step 3: Cross multiply
    58,186.31x = 87,279.53 × 18,749.30
  4. Step 4: Simplify right side
    58,186.31x = 1,636,429,561.68
  5. Step 5: Solve for x
    x = 1,636,429,561.68/58,186.31
  6. Step 6: Final answer
    x = 28,123.96

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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.