Home / 55,947.29-77,208.88-30,455.31

Finding the Fourth Proportional to 55,947.29, 77,208.88 and 30,455.31

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Solution

The fourth proportional to 55,947.29, 77,208.88 and 30,455.31 is: 42,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,947.29 : 77,208.88 = 30,455.31 : x
  2. Step 2: Convert to fraction form
    55,947.29/77,208.88 = 30,455.31/x
  3. Step 3: Cross multiply
    55,947.29x = 77,208.88 × 30,455.31
  4. Step 4: Simplify right side
    55,947.29x = 2,351,420,211.35
  5. Step 5: Solve for x
    x = 2,351,420,211.35/55,947.29
  6. Step 6: Final answer
    x = 42,029.21

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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.