Home / 50,000.81-69,018.48-28,788.53

Finding the Fourth Proportional to 50,000.81, 69,018.48 and 28,788.53

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Solution

The fourth proportional to 50,000.81, 69,018.48 and 28,788.53 is: 39,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,000.81 : 69,018.48 = 28,788.53 : x
  2. Step 2: Convert to fraction form
    50,000.81/69,018.48 = 28,788.53/x
  3. Step 3: Cross multiply
    50,000.81x = 69,018.48 × 28,788.53
  4. Step 4: Simplify right side
    50,000.81x = 1,986,940,582.03
  5. Step 5: Solve for x
    x = 1,986,940,582.03/50,000.81
  6. Step 6: Final answer
    x = 39,738.17

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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.