Home / 71,665.54-98,901.95-39,833.75

Finding the Fourth Proportional to 71,665.54, 98,901.95 and 39,833.75

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Solution

The fourth proportional to 71,665.54, 98,901.95 and 39,833.75 is: 54,972.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,665.54 : 98,901.95 = 39,833.75 : x
  2. Step 2: Convert to fraction form
    71,665.54/98,901.95 = 39,833.75/x
  3. Step 3: Cross multiply
    71,665.54x = 98,901.95 × 39,833.75
  4. Step 4: Simplify right side
    71,665.54x = 3,939,635,351.64
  5. Step 5: Solve for x
    x = 3,939,635,351.64/71,665.54
  6. Step 6: Final answer
    x = 54,972.52

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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.