Home / 51,871.90-71,582.28-29,210.80

Finding the Fourth Proportional to 51,871.90, 71,582.28 and 29,210.80

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Solution

The fourth proportional to 51,871.90, 71,582.28 and 29,210.80 is: 40,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,871.90 : 71,582.28 = 29,210.80 : x
  2. Step 2: Convert to fraction form
    51,871.90/71,582.28 = 29,210.80/x
  3. Step 3: Cross multiply
    51,871.90x = 71,582.28 × 29,210.80
  4. Step 4: Simplify right side
    51,871.90x = 2,090,975,664.62
  5. Step 5: Solve for x
    x = 2,090,975,664.62/51,871.90
  6. Step 6: Final answer
    x = 40,310.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.