Home / 51,540.35-77,332.53-21,972.11

Finding the Fourth Proportional to 51,540.35, 77,332.53 and 21,972.11

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Solution

The fourth proportional to 51,540.35, 77,332.53 and 21,972.11 is: 32,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,540.35 : 77,332.53 = 21,972.11 : x
  2. Step 2: Convert to fraction form
    51,540.35/77,332.53 = 21,972.11/x
  3. Step 3: Cross multiply
    51,540.35x = 77,332.53 × 21,972.11
  4. Step 4: Simplify right side
    51,540.35x = 1,699,158,855.74
  5. Step 5: Solve for x
    x = 1,699,158,855.74/51,540.35
  6. Step 6: Final answer
    x = 32,967.55

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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.