Home / 55,962-77,227.92-30,813.12

Finding the Fourth Proportional to 55,962, 77,227.92 and 30,813.12

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Solution

The fourth proportional to 55,962, 77,227.92 and 30,813.12 is: 42,522.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,962 : 77,227.92 = 30,813.12 : x
  2. Step 2: Convert to fraction form
    55,962/77,227.92 = 30,813.12/x
  3. Step 3: Cross multiply
    55,962x = 77,227.92 × 30,813.12
  4. Step 4: Simplify right side
    55,962x = 2,379,633,166.31
  5. Step 5: Solve for x
    x = 2,379,633,166.31/55,962
  6. Step 6: Final answer
    x = 42,522.30

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1.5x scale

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.