Home / 58,579.98-87,851.80-21,135.19

Finding the Fourth Proportional to 58,579.98, 87,851.80 and 21,135.19

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Solution

The fourth proportional to 58,579.98, 87,851.80 and 21,135.19 is: 31,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,579.98 : 87,851.80 = 21,135.19 : x
  2. Step 2: Convert to fraction form
    58,579.98/87,851.80 = 21,135.19/x
  3. Step 3: Cross multiply
    58,579.98x = 87,851.80 × 21,135.19
  4. Step 4: Simplify right side
    58,579.98x = 1,856,763,939.91
  5. Step 5: Solve for x
    x = 1,856,763,939.91/58,579.98
  6. Step 6: Final answer
    x = 31,696.22

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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.