Home / 55,515.30-76,557.30-47,016.78

Finding the Fourth Proportional to 55,515.30, 76,557.30 and 47,016.78

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Solution

The fourth proportional to 55,515.30, 76,557.30 and 47,016.78 is: 64,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,515.30 : 76,557.30 = 47,016.78 : x
  2. Step 2: Convert to fraction form
    55,515.30/76,557.30 = 47,016.78/x
  3. Step 3: Cross multiply
    55,515.30x = 76,557.30 × 47,016.78
  4. Step 4: Simplify right side
    55,515.30x = 3,599,477,731.49
  5. Step 5: Solve for x
    x = 3,599,477,731.49/55,515.30
  6. Step 6: Final answer
    x = 64,837.58

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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.