Home / 51,989.01-71,744.36-28,115.68

Finding the Fourth Proportional to 51,989.01, 71,744.36 and 28,115.68

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Solution

The fourth proportional to 51,989.01, 71,744.36 and 28,115.68 is: 38,799.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,989.01 : 71,744.36 = 28,115.68 : x
  2. Step 2: Convert to fraction form
    51,989.01/71,744.36 = 28,115.68/x
  3. Step 3: Cross multiply
    51,989.01x = 71,744.36 × 28,115.68
  4. Step 4: Simplify right side
    51,989.01x = 2,017,141,513.92
  5. Step 5: Solve for x
    x = 2,017,141,513.92/51,989.01
  6. Step 6: Final answer
    x = 38,799.39

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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.