Home / 71,553.15-98,740.62-39,288.69

Finding the Fourth Proportional to 71,553.15, 98,740.62 and 39,288.69

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Solution

The fourth proportional to 71,553.15, 98,740.62 and 39,288.69 is: 54,216.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,553.15 : 98,740.62 = 39,288.69 : x
  2. Step 2: Convert to fraction form
    71,553.15/98,740.62 = 39,288.69/x
  3. Step 3: Cross multiply
    71,553.15x = 98,740.62 × 39,288.69
  4. Step 4: Simplify right side
    71,553.15x = 3,879,389,609.59
  5. Step 5: Solve for x
    x = 3,879,389,609.59/71,553.15
  6. Step 6: Final answer
    x = 54,216.89

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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.