Home / 52,488.07-78,763.97-21,322.51

Finding the Fourth Proportional to 52,488.07, 78,763.97 and 21,322.51

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Solution

The fourth proportional to 52,488.07, 78,763.97 and 21,322.51 is: 31,996.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,488.07 : 78,763.97 = 21,322.51 : x
  2. Step 2: Convert to fraction form
    52,488.07/78,763.97 = 21,322.51/x
  3. Step 3: Cross multiply
    52,488.07x = 78,763.97 × 21,322.51
  4. Step 4: Simplify right side
    52,488.07x = 1,679,445,537.96
  5. Step 5: Solve for x
    x = 1,679,445,537.96/52,488.07
  6. Step 6: Final answer
    x = 31,996.71

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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.