Home / 50,005.14-69,014.60-28,780.30

Finding the Fourth Proportional to 50,005.14, 69,014.60 and 28,780.30

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Solution

The fourth proportional to 50,005.14, 69,014.60 and 28,780.30 is: 39,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,005.14 : 69,014.60 = 28,780.30 : x
  2. Step 2: Convert to fraction form
    50,005.14/69,014.60 = 28,780.30/x
  3. Step 3: Cross multiply
    50,005.14x = 69,014.60 × 28,780.30
  4. Step 4: Simplify right side
    50,005.14x = 1,986,260,892.38
  5. Step 5: Solve for x
    x = 1,986,260,892.38/50,005.14
  6. Step 6: Final answer
    x = 39,721.13

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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.