Home / 51,187.69-76,781.52-20,001.07

Finding the Fourth Proportional to 51,187.69, 76,781.52 and 20,001.07

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Solution

The fourth proportional to 51,187.69, 76,781.52 and 20,001.07 is: 30,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,187.69 : 76,781.52 = 20,001.07 : x
  2. Step 2: Convert to fraction form
    51,187.69/76,781.52 = 20,001.07/x
  3. Step 3: Cross multiply
    51,187.69x = 76,781.52 × 20,001.07
  4. Step 4: Simplify right side
    51,187.69x = 1,535,712,556.23
  5. Step 5: Solve for x
    x = 1,535,712,556.23/51,187.69
  6. Step 6: Final answer
    x = 30,001.60

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1.5x scale

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.