Home / 58,490.43-87,743.46-20,530.68

Finding the Fourth Proportional to 58,490.43, 87,743.46 and 20,530.68

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Solution

The fourth proportional to 58,490.43, 87,743.46 and 20,530.68 is: 30,798.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,490.43 : 87,743.46 = 20,530.68 : x
  2. Step 2: Convert to fraction form
    58,490.43/87,743.46 = 20,530.68/x
  3. Step 3: Cross multiply
    58,490.43x = 87,743.46 × 20,530.68
  4. Step 4: Simplify right side
    58,490.43x = 1,801,432,899.35
  5. Step 5: Solve for x
    x = 1,801,432,899.35/58,490.43
  6. Step 6: Final answer
    x = 30,798.76

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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.