Home / 51,430.41-77,145.80-18,132.39

Finding the Fourth Proportional to 51,430.41, 77,145.80 and 18,132.39

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Solution

The fourth proportional to 51,430.41, 77,145.80 and 18,132.39 is: 27,198.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.41 : 77,145.80 = 18,132.39 : x
  2. Step 2: Convert to fraction form
    51,430.41/77,145.80 = 18,132.39/x
  3. Step 3: Cross multiply
    51,430.41x = 77,145.80 × 18,132.39
  4. Step 4: Simplify right side
    51,430.41x = 1,398,837,641.80
  5. Step 5: Solve for x
    x = 1,398,837,641.80/51,430.41
  6. Step 6: Final answer
    x = 27,198.65

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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.