Home / 51,430.92-77,152.59-18,144.15

Finding the Fourth Proportional to 51,430.92, 77,152.59 and 18,144.15

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Solution

The fourth proportional to 51,430.92, 77,152.59 and 18,144.15 is: 27,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.92 : 77,152.59 = 18,144.15 : x
  2. Step 2: Convert to fraction form
    51,430.92/77,152.59 = 18,144.15/x
  3. Step 3: Cross multiply
    51,430.92x = 77,152.59 × 18,144.15
  4. Step 4: Simplify right side
    51,430.92x = 1,399,868,165.85
  5. Step 5: Solve for x
    x = 1,399,868,165.85/51,430.92
  6. Step 6: Final answer
    x = 27,218.42

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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.