Home / 52,739.07-79,109.42-21,151.91

Finding the Fourth Proportional to 52,739.07, 79,109.42 and 21,151.91

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Solution

The fourth proportional to 52,739.07, 79,109.42 and 21,151.91 is: 31,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.07 : 79,109.42 = 21,151.91 : x
  2. Step 2: Convert to fraction form
    52,739.07/79,109.42 = 21,151.91/x
  3. Step 3: Cross multiply
    52,739.07x = 79,109.42 × 21,151.91
  4. Step 4: Simplify right side
    52,739.07x = 1,673,314,830.69
  5. Step 5: Solve for x
    x = 1,673,314,830.69/52,739.07
  6. Step 6: Final answer
    x = 31,728.18

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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.