Home / 71,827.57-99,121.09-39,561.57

Finding the Fourth Proportional to 71,827.57, 99,121.09 and 39,561.57

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Solution

The fourth proportional to 71,827.57, 99,121.09 and 39,561.57 is: 54,594.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,827.57 : 99,121.09 = 39,561.57 : x
  2. Step 2: Convert to fraction form
    71,827.57/99,121.09 = 39,561.57/x
  3. Step 3: Cross multiply
    71,827.57x = 99,121.09 × 39,561.57
  4. Step 4: Simplify right side
    71,827.57x = 3,921,385,940.51
  5. Step 5: Solve for x
    x = 3,921,385,940.51/71,827.57
  6. Step 6: Final answer
    x = 54,594.44

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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.