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Finding the Fourth Proportional to 50,008.65, 69,018.47 and 28,788.81

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Solution

The fourth proportional to 50,008.65, 69,018.47 and 28,788.81 is: 39,732.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,008.65 : 69,018.47 = 28,788.81 : x
  2. Step 2: Convert to fraction form
    50,008.65/69,018.47 = 28,788.81/x
  3. Step 3: Cross multiply
    50,008.65x = 69,018.47 × 28,788.81
  4. Step 4: Simplify right side
    50,008.65x = 1,986,959,475.38
  5. Step 5: Solve for x
    x = 1,986,959,475.38/50,008.65
  6. Step 6: Final answer
    x = 39,732.32

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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.