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Finding the Fourth Proportional to 46,680.08, 70,020.01 and 20,008.78

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Solution

The fourth proportional to 46,680.08, 70,020.01 and 20,008.78 is: 30,013.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,680.08 : 70,020.01 = 20,008.78 : x
  2. Step 2: Convert to fraction form
    46,680.08/70,020.01 = 20,008.78/x
  3. Step 3: Cross multiply
    46,680.08x = 70,020.01 × 20,008.78
  4. Step 4: Simplify right side
    46,680.08x = 1,401,014,750.62
  5. Step 5: Solve for x
    x = 1,401,014,750.62/46,680.08
  6. Step 6: Final answer
    x = 30,013.12

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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.