Home / 58,581.21-87,853.63-21,136.43

Finding the Fourth Proportional to 58,581.21, 87,853.63 and 21,136.43

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Solution

The fourth proportional to 58,581.21, 87,853.63 and 21,136.43 is: 31,698.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,581.21 : 87,853.63 = 21,136.43 : x
  2. Step 2: Convert to fraction form
    58,581.21/87,853.63 = 21,136.43/x
  3. Step 3: Cross multiply
    58,581.21x = 87,853.63 × 21,136.43
  4. Step 4: Simplify right side
    58,581.21x = 1,856,911,714.31
  5. Step 5: Solve for x
    x = 1,856,911,714.31/58,581.21
  6. Step 6: Final answer
    x = 31,698.08

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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.