Home / 55,889.87-77,128.34-30,396.53

Finding the Fourth Proportional to 55,889.87, 77,128.34 and 30,396.53

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Solution

The fourth proportional to 55,889.87, 77,128.34 and 30,396.53 is: 41,947.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,889.87 : 77,128.34 = 30,396.53 : x
  2. Step 2: Convert to fraction form
    55,889.87/77,128.34 = 30,396.53/x
  3. Step 3: Cross multiply
    55,889.87x = 77,128.34 × 30,396.53
  4. Step 4: Simplify right side
    55,889.87x = 2,344,433,941.50
  5. Step 5: Solve for x
    x = 2,344,433,941.50/55,889.87
  6. Step 6: Final answer
    x = 41,947.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.