Home / 52,742.90-79,114.68-21,578.15

Finding the Fourth Proportional to 52,742.90, 79,114.68 and 21,578.15

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Solution

The fourth proportional to 52,742.90, 79,114.68 and 21,578.15 is: 32,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742.90 : 79,114.68 = 21,578.15 : x
  2. Step 2: Convert to fraction form
    52,742.90/79,114.68 = 21,578.15/x
  3. Step 3: Cross multiply
    52,742.90x = 79,114.68 × 21,578.15
  4. Step 4: Simplify right side
    52,742.90x = 1,707,148,036.67
  5. Step 5: Solve for x
    x = 1,707,148,036.67/52,742.90
  6. Step 6: Final answer
    x = 32,367.36

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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.