Home / 61,823.62-85,285.20-39,124.36

Finding the Fourth Proportional to 61,823.62, 85,285.20 and 39,124.36

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Solution

The fourth proportional to 61,823.62, 85,285.20 and 39,124.36 is: 53,971.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,823.62 : 85,285.20 = 39,124.36 : x
  2. Step 2: Convert to fraction form
    61,823.62/85,285.20 = 39,124.36/x
  3. Step 3: Cross multiply
    61,823.62x = 85,285.20 × 39,124.36
  4. Step 4: Simplify right side
    61,823.62x = 3,336,728,867.47
  5. Step 5: Solve for x
    x = 3,336,728,867.47/61,823.62
  6. Step 6: Final answer
    x = 53,971.75

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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.