Home / 52,491.09-78,769.29-21,326.34

Finding the Fourth Proportional to 52,491.09, 78,769.29 and 21,326.34

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Solution

The fourth proportional to 52,491.09, 78,769.29 and 21,326.34 is: 32,002.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,491.09 : 78,769.29 = 21,326.34 : x
  2. Step 2: Convert to fraction form
    52,491.09/78,769.29 = 21,326.34/x
  3. Step 3: Cross multiply
    52,491.09x = 78,769.29 × 21,326.34
  4. Step 4: Simplify right side
    52,491.09x = 1,679,860,412.44
  5. Step 5: Solve for x
    x = 1,679,860,412.44/52,491.09
  6. Step 6: Final answer
    x = 32,002.77

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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.