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Finding the Fourth Proportional to 71,674.99, 98,888.33 and 39,837.74

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Solution

The fourth proportional to 71,674.99, 98,888.33 and 39,837.74 is: 54,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,674.99 : 98,888.33 = 39,837.74 : x
  2. Step 2: Convert to fraction form
    71,674.99/98,888.33 = 39,837.74/x
  3. Step 3: Cross multiply
    71,674.99x = 98,888.33 × 39,837.74
  4. Step 4: Simplify right side
    71,674.99x = 3,939,487,380.39
  5. Step 5: Solve for x
    x = 3,939,487,380.39/71,674.99
  6. Step 6: Final answer
    x = 54,963.21

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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.