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Finding the Fourth Proportional to 61,277.67, 84,506.94 and 39,744.90

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Solution

The fourth proportional to 61,277.67, 84,506.94 and 39,744.90 is: 54,811.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,277.67 : 84,506.94 = 39,744.90 : x
  2. Step 2: Convert to fraction form
    61,277.67/84,506.94 = 39,744.90/x
  3. Step 3: Cross multiply
    61,277.67x = 84,506.94 × 39,744.90
  4. Step 4: Simplify right side
    61,277.67x = 3,358,719,879.61
  5. Step 5: Solve for x
    x = 3,358,719,879.61/61,277.67
  6. Step 6: Final answer
    x = 54,811.48

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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.