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Finding the Fourth Proportional to 60,144.80, 82,970.60 and 39,734.87

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Solution

The fourth proportional to 60,144.80, 82,970.60 and 39,734.87 is: 54,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,144.80 : 82,970.60 = 39,734.87 : x
  2. Step 2: Convert to fraction form
    60,144.80/82,970.60 = 39,734.87/x
  3. Step 3: Cross multiply
    60,144.80x = 82,970.60 × 39,734.87
  4. Step 4: Simplify right side
    60,144.80x = 3,296,825,391.29
  5. Step 5: Solve for x
    x = 3,296,825,391.29/60,144.80
  6. Step 6: Final answer
    x = 54,814.81

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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.