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Finding the Fourth Proportional to 47,401.68, 71,102.16 and 19,699.68

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Solution

The fourth proportional to 47,401.68, 71,102.16 and 19,699.68 is: 29,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,401.68 : 71,102.16 = 19,699.68 : x
  2. Step 2: Convert to fraction form
    47,401.68/71,102.16 = 19,699.68/x
  3. Step 3: Cross multiply
    47,401.68x = 71,102.16 × 19,699.68
  4. Step 4: Simplify right side
    47,401.68x = 1,400,689,799.31
  5. Step 5: Solve for x
    x = 1,400,689,799.31/47,401.68
  6. Step 6: Final answer
    x = 29,549.37

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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.