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Finding the Fourth Proportional to 50,680, 76,030.12 and 15,618.16

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Solution

The fourth proportional to 50,680, 76,030.12 and 15,618.16 is: 23,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,680 : 76,030.12 = 15,618.16 : x
  2. Step 2: Convert to fraction form
    50,680/76,030.12 = 15,618.16/x
  3. Step 3: Cross multiply
    50,680x = 76,030.12 × 15,618.16
  4. Step 4: Simplify right side
    50,680x = 1,187,450,578.98
  5. Step 5: Solve for x
    x = 1,187,450,578.98/50,680
  6. Step 6: Final answer
    x = 23,430.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.