Home / 85,084.72-117,417.66-47,358.97

Finding the Fourth Proportional to 85,084.72, 117,417.66 and 47,358.97

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Solution

The fourth proportional to 85,084.72, 117,417.66 and 47,358.97 is: 65,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,084.72 : 117,417.66 = 47,358.97 : x
  2. Step 2: Convert to fraction form
    85,084.72/117,417.66 = 47,358.97/x
  3. Step 3: Cross multiply
    85,084.72x = 117,417.66 × 47,358.97
  4. Step 4: Simplify right side
    85,084.72x = 5,560,779,437.41
  5. Step 5: Solve for x
    x = 5,560,779,437.41/85,084.72
  6. Step 6: Final answer
    x = 65,355.79

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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.